MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR JANUARY 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 15 09 63 96 8.0 98 12.0 3.5 4.5 7.5 7.5 7.2 7.7 7.8 8.8 20 0 17.5 0.0 000000 996.0 5.2 0.0 0.6
02 8 18 05 02 97 9.6 98 9.9 7.7 6.5 8.0 8.5 8.5 8.5 8.4 8.7 10 0 1.2 0.0 000000 992.0 1.1 0.0 0.6
03 7 27 09 02 97 5.5 88 7.2 4.9 2.0 5.5 6.0 8.0 8.6 8.1 8.7 10 0 tr 0.1 000000 995.5 0.0 0.0 0.6
04 8 35 02 02 97 1.9 96 4.0 0.7 -1.6 3.8 4.1 5.8 7.6 7.7 8.6 10 0 tr 4.5 500000 1011.0 0.0 0.0 0.8
05 0 00 00 02 97 -2.8 98 3.9 -3.4 -7.1 1.3 1.8 4.0 6.4 6.9 8.6 40 0 0.0 4.8 000000 1016.0 0.0 8.6 0.3
06 1 36 05 02 97 0.4 96 4.0 -3.2 -7.1 1.2 1.6 3.4 5.6 6.3 8.4 40 0 0.1 6.0 000000 1016.0 0.2 6.2 1.0
07 4 35 02 01 97 -0.6 97 2.4 -2.0 -8.2 0.9 1.1 2.7 4.7 5.6 8.0 X2 <1 tr 2.8 510000 1018.5 0.0 14.0 0.9
08 7 36 02 03 97 -0.4 97 1.1 -4.8 -8.9 0.5 0.6 2.2 4.0 5.1 7.7 X1 <1 0.3 0.2 500000 1015.5 0.8 9.3 0.3
09 5 35 09 02 97 0.1 97 3.3 -0.4 -3.9 0.7 0.6 2.0 3.6 4.6 7.4 X1 <1 0.2 4.4 000000 1020.0 0.2 0.0 0.6
10 8 33 02 02 97 3.3 88 5.1 0.0 -5.1 1.0 0.8 2.0 3.7 4.2 6.9 X1 <1 tr 2.6 000000 1026.0 0.0 0.0 1.1
11 1 36 02 02 97 -1.2 92 3.0 -2.2 -6.1 0.7 0.9 2.1 3.8 4.3 6.7 40 0 0.0 6.1 000000 1034.5 0.0 15.7 1.1
12 1 00 00 02 95 -3.7 92 7.5 -6.0 -9.5 0.0 0.1 1.5 3.1 3.9 6.5 40 0 tr 5.5 000000 1035.0 0.0 9.9 0.7
13 7 27 02 02 97 7.2 93 11.9 -3.7 -7.0 0.5 0.4 1.4 3.6 3.6 6.3 40 0 tr 4.9 000000 1027.5 0.0 0.0 1.3
14 7 22 05 02 97 8.5 90 10.4 7.2 1.5 4.9 4.4 4.0 4.1 4.0 6.1 10 0 0.0 0.0 000000 1028.0 0.0 0.0 2.1
15 3 22 09 02 97 9.4 79 10.1 8.3 4.1 5.5 5.0 5.0 5.1 4.9 6.1 10 0 0.4 0.0 000000 1019.5 1.0 0.0 0.7
16 2 23 02 02 97 2.7 99 10.0 1.8 -3.1 2.7 2.7 4.2 5.1 5.1 6.1 10 0 tr 3.7 000000 1027.0 0.0 0.0 1.4
17 8 18 13 50 97 7.4 92 7.4 2.7 -3.0 5.6 5.1 5.0 5.5 5.1 6.4 10 0 0.1 0.0 000000 1013.0 0.6 0.0 0.5
18 7 20 02 03 96 1.7 98 9.0 1.4 -3.1 2.4 2.4 3.8 5.1 5.2 6.5 10 0 15.1 0.0 000000 1014.5 8.9 0.0 1.1
19 8 18 05 61 95 7.5 98 9.9 1.6 -0.5 5.9 5.4 5.3 5.4 5.3 6.5 10 0 4.6 2.4 000000 996.0 6.8 0.0 0.9
20 8 14 19 61 95 9.5 95 10.0 3.8 -1.5 6.3 5.6 5.4 5.5 5.5 6.5 10 0 3.6 0.1 000000 998.5 5.2 0.0 0.8
21 8 15 09 02 97 8.5 93 8.8 7.1 1.1 6.0 5.6 5.9 6.0 5.7 6.6 10 0 11.5 0.1 000000 980.5 6.3 0.0 0.4
22 8 25 05 02 97 6.7 94 10.0 5.5 1.0 5.6 5.5 6.0 6.3 5.9 6.6 10 0 0.3 3.0 000000 990.0 0.2 0.0 1.2
23 7 30 09 02 97 4.9 90 8.1 4.9 2.4 5.3 5.1 5.9 6.4 6.2 6.7 10 0 0.0 5.9 000000 1022.0 0.0 1.7 0.9
24 0 14 02 02 97 -1.6 98 10.0 -2.1 -6.0 1.7 2.0 4.0 5.6 6.0 6.9 10 0 0.2 4.7 000000 1035.5 0.2 9.8 0.7
25 8 27 05 02 97 9.3 92 13.3 -1.6 -5.5 6.3 5.8 5.5 5.6 5.6 6.8 10 0 1.1 2.2 000000 1026.5 2.4 0.0 1.1
26 8 20 09 21 96 8.0 98 12.6 6.8 0.5 6.1 5.6 5.7 6.1 6.0 6.8 10 0 tr 0.6 000000 1027.5 0.0 0.0 0.2
27 0 25 02 10 95 6.4 98 16.0 6.2 0.6 5.8 5.8 6.3 6.5 6.2 6.9 10 0 1.7 6.3 000000 1028.0 1.3 0.0 1.0
28 0 27 09 02 96 5.7 84 9.6 5.3 0.9 4.6 4.9 6.3 6.9 6.5 7.0 10 0 3.4 5.0 000000 1019.5 1.2 0.0 2.3
29 8 32 19 02 97 5.7 80 7.0 4.7 0.7 4.1 4.1 5.2 6.6 6.5 7.1 10 0 4.8 4.9 000000 1009.5 2.5 0.0 2.4
30 8 27 05 71 95 1.2 98 2.2 1.0 -2.0 2.5 2.7 4.1 5.9 6.5 7.1 X3 2 0.2 2.8 510000 1008.0 0.5 2.0 0.7
31 1 35 13 02 06 -1.0 75 3.8 -2.0 -4.4 1.0 1.1 2.8 4.9 5.4 7.0 X1 1 12.7 7.1 000000 1021.0 4.8 9.6 0.9
Monthly means
4.1 93 7.9 1.7 -2.2 3.7 3.6 4.6 5.6 5.7 7.1 1015.1
Monthly totals
79.0 90.7 49.4 86.8 29.2
Highest values
9.6 16.0 8.3 6.5 8.0 8.5 8.5 8.6 8.4 8.8 17.5 7.1 8.9 15.7 2.4
Lowest values
-3.7 75 1.1 -6.0 -9.5 0.0 0.1 1.4 3.1 3.6 6.1
1971-2000 monthly climatological averages
89 7.5 1.6 -0.7 3.5 3.7 4.5 5.1 5.4 6.6 60.4 49.0 1016.1 62.5 91.6 23.4
Number of days with
2003 normal
Snow/sleet falling 4 2.9
50% snow cover 09GMT 2 1.7
Hail or ice pellets 0 0.4
Thunder 0 0.4
Gale 0 0.6
Fog at 09GMT 0 2.6
Air frost 11 10.2
Ground frost 19 17.4
0.2mm precipitation 17 15.5
1.0mm precipitation 11 11.2
5.0mm precipitation 4 4.7
No sunshine 6 13.4
16.0C on 27th was the highest January temperature for at least 50 years,
being 1.2C warmer than any other reading in this period.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 71 continuous slight snow
2 sky not changing
3 cloud increasing
10 mist
21 recent rain
50 intermittent slight drizzle
61 continuous slight rain
63 continuous moderate rain
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (X1-3 snow, 10 moist, 20 wet, 40 frozen) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR FEBRUARY 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 23 05 60 95 1.8 98 9.0 -1.0 -5.3 1.1 1.1 2.4 4.1 4.6 6.7 X3 2 1.5 3.5 510000 1013.0 2.9 0.0 0.7
02 6 22 05 01 97 4.5 95 8.5 -0.4 -4.6 1.8 1.6 2.3 4.0 4.4 6.4 10 0 tr 2.8 000000 1006.0 0.0 0.5 1.2
03 6 22 05 02 97 4.1 83 7.5 3.1 -0.8 2.2 2.1 3.1 4.2 4.4 6.2 10 0 0.0 6.2 000000 994.5 0.0 0.0 1.4
04 7 27 05 03 97 2.6 90 6.5 0.1 -3.5 1.1 1.1 2.5 4.0 4.4 6.1 40 0 tr 5.4 000000 997.5 0.0 0.0 1.6
05 2 29 09 02 97 1.0 90 5.4 -0.1 -2.5 0.9 0.9 2.3 3.8 4.3 6.1 40 0 0.0 4.6 500000 1011.5 0.0 6.1 1.3
06 7 14 02 03 96 -0.2 97 7.2 -4.3 -9.4 0.7 0.7 2.0 3.4 4.0 5.9 40 0 0.6 0.0 000000 1018.0 0.8 9.2 1.3
07 8 18 02 02 95 7.2 95 11.0 -0.2 -4.3 3.8 3.2 3.3 3.9 3.9 5.8 10 0 0.1 0.2 000000 1018.5 0.1 0.0 0.6
08 8 23 05 02 97 9.1 95 10.7 7.2 3.4 5.8 5.3 5.1 4.9 4.5 5.6 10 0 5.9 0.0 000000 1018.5 6.3 0.0 0.8
09 8 20 05 60 96 7.8 96 8.9 7.8 6.1 6.6 6.1 5.9 5.5 5.0 5.8 10 0 2.1 0.6 000000 1010.5 2.6 0.0 0.9
10 8 18 02 63 94 3.0 96 7.4 0.8 -3.0 3.8 3.9 5.3 5.8 5.4 6.0 10 0 5.6 0.0 000000 1019.5 10.4 0.0 0.6
11 8 14 02 60 95 5.6 95 6.9 3.0 0.4 5.2 4.9 5.1 5.6 5.4 6.1 10 0 3.5 0.0 000000 1021.5 9.5 0.0 0.1
12 8 33 02 02 94 6.7 98 8.1 5.6 4.4 5.9 5.6 5.8 5.8 5.5 6.2 10 0 0.5 1.8 000000 1026.0 1.2 0.0 0.6
13 8 09 05 02 97 2.0 80 3.0 1.9 1.1 4.3 4.4 5.5 6.0 5.6 6.2 10 0 0.0 2.2 000000 1026.5 0.0 1.2 1.0
14 6 09 05 10 96 0.0 92 6.0 -1.6 -5.6 1.2 1.7 3.5 5.3 5.4 6.4 10 0 0.0 7.1 000000 1028.0 0.0 9.9 1.5
15 0 07 05 01 97 1.0 83 6.3 -1.4 -7.4 1.1 1.2 2.0 4.5 4.9 6.3 40 0 0.0 5.7 000000 1034.5 0.0 7.0 1.5
16 8 05 02 02 96 1.6 85 4.9 1.0 -2.5 2.6 2.4 3.5 4.6 4.6 6.1 10 0 0.0 4.5 000000 1035.5 0.0 4.0 1.5
17 7 04 05 02 97 0.9 81 6.1 -0.9 -6.2 1.1 1.2 2.6 4.1 4.5 6.1 40 0 0.0 7.5 000000 1036.5 0.0 7.6 2.0
18 0 06 02 10 95 0.3 95 6.7 -3.4 -8.9 0.7 0.7 2.2 3.9 4.2 5.8 40 0 0.0 8.6 000000 1028.0 0.0 8.8 2.2
19 0 00 00 02 94 1.4 97 6.4 -1.5 -6.1 0.6 0.6 1.9 3.4 3.9 5.7 40 0 0.0 5.2 000000 1014.5 0.0 8.4 1.3
20 8 09 05 02 96 3.4 73 9.2 0.8 -4.9 1.0 0.9 1.9 3.2 3.6 5.5 10 0 0.0 1.7 000000 1010.0 0.0 0.0 1.2
21 0 13 02 41 94 2.3 95 13.3 -1.5 -5.5 0.9 1.0 2.1 3.5 3.6 5.4 40 0 0.0 7.9 000000 1019.5 0.0 7.3 1.2
22 8 17 02 44 07 1.6 92 10.6 0.7 -5.0 2.0 1.7 2.6 3.8 3.7 5.3 40 0 0.1 6.6 000000 1021.0 0.0 0.0 1.1
23 8 18 02 02 96 8.1 92 14.3 1.6 -3.2 4.1 3.3 3.4 4.0 4.1 5.2 10 0 tr 4.3 000000 1020.5 0.0 0.0 0.7
24 8 05 02 44 03 5.7 96 14.5 4.7 -1.6 5.0 4.6 4.7 4.8 4.4 5.3 10 0 0.0 3.7 000000 1022.0 0.0 0.0 1.3
25 4 09 05 02 97 6.8 74 12.9 4.0 -2.0 3.6 3.8 4.7 5.2 4.7 5.5 10 0 0.0 7.9 000000 1015.5 0.0 0.0 1.6
26 7 09 02 03 97 7.1 75 14.5 4.5 -1.5 4.6 4.5 5.1 5.5 5.1 5.6 10 0 tr 4.6 000000 1009.5 0.0 0.0 2.8
27 7 12 02 03 97 8.3 78 14.6 5.9 -0.5 5.8 5.6 5.9 5.9 5.4 5.8 10 0 tr 3.4 000000 1009.5 0.0 0.0 1.3
28 7 18 05 02 97 9.8 89 10.3 6.7 0.0 6.3 6.2 6.6 6.4 5.8 6.0 10 0 4.8 0.0 000000 1015.5 4.4 0.0 0.6
Monthly means
4.1 89 9.0 1.5 -2.8 3.0 2.9 3.7 4.6 4.6 5.9 1017.9
Monthly totals
24.7 106.0 38.2 70.0 33.9
Highest values
9.8 14.6 7.8 6.1 6.6 6.2 6.6 6.4 5.8 6.7 5.9 8.6 10.4 9.9 2.8
Lowest values
-0.2 73 3.0 -4.3 -9.4 0.6 0.6 1.9 3.2 3.6 5.2
1971-2000 monthly climatological averages
88 8.3 1.6 -1.3 3.4 3.6 4.5 5.0 5.1 6.1 42.8 67.5 1016.8 45.7 95.2 31.1
Number of days with
2003 normal
Snow/sleet falling 2 3.0
50% snow cover 09GMT 1 1.7
Hail or ice pellets 0 0.4
Thunder 0 0.2
Gale 0 0.3
Fog at 09GMT 0 2.4
Air frost 11 9.3
Ground frost 22 17.5
0.2mm precipitation 8 11.4
1.0mm precipitation 6 9.1
5.0mm precipitation 2 3.0
No sunshine 5 9.2
A dry and sunny February. There have been more days with air frost so far
this year than in the whole of 2002. The coldest February since 1996, but still warmer than average.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing
2 sky not changing
3 cloud increasing
10 mist
41 fog patches
44 fog
60 intermittent slight rain
63 continuous moderate rain
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (X3 slight snow, 10 moist, 20 wet, 40 frozen) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR MARCH 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 15 05 10 96 7.9 96 12.1 1.2 -2.5 6.1 5.5 6.4 6.5 6.2 6.1 10 0 tr 0.3 000000 1013.0 0.0 0.0 0.5
02 1 17 02 02 97 8.1 85 13.3 3.9 -0.5 5.3 5.4 6.0 6.7 6.2 6.2 10 0 0.0 8.3 000000 1009.5 0.0 0.0 1.2
03 0 18 02 02 97 3.0 97 10.0 -0.9 -4.8 3.2 3.7 5.4 6.5 6.3 6.4 10 0 0.6 0.3 000000 1017.0 1.1 5.7 1.0
04 8 16 02 02 96 9.2 96 13.8 3.0 3.5 6.7 6.3 6.4 6.6 6.2 6.4 10 0 0.2 0.7 000000 1013.0 0.6 0.0 1.0
05 8 18 09 02 97 12.0 86 12.0 9.2 6.9 8.8 8.3 7.8 7.2 6.4 6.4 10 0 8.7 0.0 000000 1010.5 6.0 0.0 0.8
06 0 27 02 10 96 7.8 93 14.2 2.6 -1.4 5.1 5.4 6.9 7.4 6.7 6.7 10 0 0.0 8.1 000000 1015.0 0.0 0.0 1.2
07 8 16 05 02 97 7.0 93 10.4 2.4 -1.6 5.7 5.6 6.5 7.3 6.9 6.8 10 0 7.5 0.2 000000 1014.0 3.6 0.0 1.2
08 7 21 09 02 97 7.9 80 11.0 5.6 1.9 5.8 5.5 6.3 7.0 6.9 6.9 10 0 0.1 0.0 000000 1015.5 0.2 0.0 1.5
09 8 21 13 02 97 10.3 78 14.2 7.9 5.1 7.7 7.2 7.1 7.2 6.7 7.0 10 0 0.0 2.2 000000 1015.0 0.0 0.0 1.5
10 6 18 05 02 97 11.0 80 13.6 8.0 1.7 7.1 7.1 7.5 7.8 7.2 7.0 10 0 0.0 0.5 000000 1017.0 0.0 0.0 1.7
11 8 18 09 02 97 10.2 79 12.3 8.5 3.2 7.8 7.5 7.9 7.9 7.3 7.1 10 0 0.0 0.0 000000 1011.5 0.0 0.0 1.4
12 1 32 09 02 97 6.8 88 9.6 5.7 -0.6 6.2 6.4 7.5 8.0 7.4 7.3 10 0 0.0 0.4 000000 1027.0 0.0 0.0 1.9
13 8 04 05 02 97 5.6 77 10.6 5.0 1.7 5.8 5.8 6.8 7.4 7.3 7.4 10 0 0.0 5.9 000000 1037.0 0.0 0.0 1.6
14 7 09 05 02 96 6.6 77 12.1 2.2 -2.8 4.1 4.2 5.9 7.1 7.2 7.4 10 0 0.0 9.0 000000 1033.0 0.0 0.0 3.0
15 0 08 02 02 97 10.5 79 12.3 1.7 -3.9 3.6 3.8 8.5 6.9 6.9 7.4 10 0 0.0 10.7 000000 1035.0 0.0 0.0 2.0
16 0 06 02 02 97 6.9 75 15.5 -0.9 -5.3 3.3 3.4 5.3 6.9 6.8 7.3 10 0 0.0 10.6 000000 1038.5 0.0 3.2 1.9
17 2 14 02 02 97 7.9 81 18.9 -1.5 -7.1 3.0 3.3 5.5 6.9 6.7 7.2 10 0 0.0 9.6 000000 1036.5 0.0 5.2 2.4
18 8 05 05 02 96 5.6 78 14.2 3.7 1.0 5.6 5.6 6.5 7.2 6.9 7.2 10 0 0.0 6.7 000000 1034.0 0.0 0.0 1.7
19 0 08 02 02 97 6.5 82 16.9 -0.9 -6.8 3.7 4.0 6.0 7.1 7.0 7.2 00 0 0.0 11.1 000000 1031.0 0.0 3.2 1.5
20 6 04 02 02 96 6.9 76 16.9 -0.9 -6.4 3.8 4.1 6.0 7.2 7.1 7.3 00 0 0.0 8.9 000000 1028.0 0.0 4.0 1.9
21 0 01 02 02 94 6.6 89 10.5 5.2 -3.0 5.8 5.7 6.8 7.4 7.2 7.3 00 0 0.0 1.6 000000 1025.5 0.0 0.0 1.1
22 0 01 02 02 94 6.8 84 15.2 0.2 -5.5 4.0 4.3 6.5 7.2 7.2 7.4 00 0 0.0 9.5 000000 1023.0 0.0 0.0 2.1
23 0 04 05 02 97 9.0 71 19.6 0.2 5.4 5.3 4.9 6.0 7.2 7.1 7.4 00 0 0.0 9.2 000000 1022.0 0.0 0.0 2.8
24 0 05 02 02 96 11.4 69 17.5 3.0 -2.8 5.4 5.8 7.0 7.6 7.3 7.4 00 0 0.0 9.1 000000 1022.5 0.0 0.0 1.7
25 9 00 00 46 03 8.0 79 18.4 4.9 -0.2 7.2 7.2 8.1 8.2 7.7 7.5 00 0 0.0 9.3 000000 1023.0 0.0 0.0 1.8
26 3 05 02 02 97 11.2 70 18.1 4.6 0.1 6.8 7.1 8.1 8.4 8.0 7.6 00 0 0.0 9.3 000000 1019.5 0.0 0.0 2.2
27 1 36 02 05 95 9.5 70 18.6 4.7 0.2 7.1 7.2 8.5 8.9 8.3 7.8 00 0 0.0 9.5 000000 1017.5 0.0 0.0 3.4
28 8 03 09 41 09 5.3 90 14.8 4.0 -0.9 7.4 7.4 8.5 9.0 8.5 8.0 00 0 0.0 0.8 000000 1014.0 0.0 0.0 1.6
29 8 36 02 02 94 11.5 79 16.4 5.3 -3.5 9.3 9.1 9.3 9.1 8.4 8.1 00 0 0.0 2.7 000000 1012.5 0.0 0.0 2.0
30 7 01 05 02 96 10.8 60 17.5 7.6 2.2 9.7 9.4 9.4 9.4 8.7 8.2 00 0 0.0 10.0 000000 1018.0 0.0 0.0 2.8
31 0 35 02 02 06 9.9 85 16.4 2.2 -2.1 6.7 7.3 9.1 9.5 8.9 8.4 00 0 0.0 11.3 000000 1035.5 0.0 0.0 2.2
Monthly means
8.3 81 14.4 3.5 -0.9 5.9 5.9 7.1 7.6 7.2 7.2 1022.1
Monthly totals
17.1 175.8 11.5 21.3 54.6
Highest values
12.0 19.6 9.2 6.9 9.7 9.4 9.4 9.5 8.9 8.4 8.7 11.3 6.0 5.7 3.4
Lowest values
3.0 60 9.6 -1.5 -7.1 3.0 3.3 5.3 6.5 6.2 6.1
1971-2000 monthly climatological averages
84 11.2 3.3 0.5 5.2 5.5 6.4 6.6 6.5 6.7 48.5 102.9 1015.5 47.5 24.2 44.2
Number of days with
2003 normal
Snow/sleet falling 0 2.0
50% snow cover 09GMT 0 0.2
Hail or ice pellets 0 1.0
Thunder 0 0.5
Gale 0 0.4
Fog at 09GMT 0 0.9
Air frost 5 5.4
Ground frost 19 14.7
0.2mm precipitation 4 14.6
1.0mm precipitation 2 10.1
5.0mm precipitation 2 2.5
No sunshine 3 6.7
The second sunniest March (after 1995) since at least 1953. Frequent ground frosts,
and very large temperature rangeson me days. No measurable rainfall 13th to 31st.
The mean maximum temperature 3C above normal.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
2 sky not changing
5 haze
10 mist
41 fog patches
46 fog
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (X1 slight snow, 10 moist, 20 wet, 40 frozen) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR APRIL 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 23 09 02 96 7.7 90 11.8 2.1 -2.2 7.1 7.2 8.9 9.4 9.0 8.4 90 0 3.8 1.6 000000 1012.5 3.4 0.0 1.2
02 5 33 05 02 97 6.9 74 12.1 3.8 0.4 5.6 6.1 7.8 8.6 8.7 8.5 10 0 0.0 5.8 000000 1013.0 0.0 0.0 2.3
03 7 33 02 02 97 10.4 75 14.0 2.1 -3.6 5.1 5.5 7.4 8.4 8.3 8.5 10 0 0.0 9.8 000000 1025.0 0.0 0.0 2.1
04 8 27 02 02 96 12.8 80 20.1 5.0 -0.1 7.9 7.8 8.5 8.6 8.3 8.4 10 0 0.0 9.9 000000 1029.9 0.0 0.0 3.0
05 1 33 09 02 97 12.4 62 17.8 6.8 0.9 8.9 8.9 9.6 9.5 8.8 8.4 00 0 0.0 11.5 000000 1031.5 0.0 0.0 2.9
06 8 01 09 02 97 9.9 74 9.9 8.8 2.6 9.7 9.6 10.0 9.9 9.3 8.6 00 0 0.0 0.0 000000 1029.0 0.0 0.0 2.4
07 0 05 02 02 97 6.3 57 11.1 0.3 -4.8 5.1 5.7 8.0 9.1 9.1 8.8 00 0 0.0 11.5 000000 1027.0 0.0 0.0 2.5
08 0 08 02 02 97 7.7 63 11.4 -1.8 -6.9 4.0 4.9 7.4 8.8 8.7 8.8 00 0 0.0 11.2 000000 1025.5 0.0 4.4 2.1
09 4 09 02 02 97 6.5 63 8.6 -1.6 -6.5 4.5 5.0 7.3 8.5 8.5 8.7 00 0 tr 4.1 000000 1019.0 0.0 5.6 1.8
10 7 36 09 02 97 5.7 72 8.5 0.4 -5.4 4.5 5.2 7.0 8.1 8.2 8.6 00 0 tr 3.3 500000 1010.5 0.0 0.0 1.3
11 1 22 02 02 96 4.6 80 11.6 -1.8 -6.0 3.8 4.4 6.7 7.9 7.8 8.5 00 0 0.0 5.4 000000 1010.0 0.0 6.7 1.5
12 0 11 02 02 97 10.1 61 15.9 -1.7 -5.7 4.7 4.8 6.6 7.9 7.8 8.4 90 0 tr 7.7 000000 1012.0 0.0 6.5 3.1
13 0 13 09 02 96 13.2 68 18.8 6.4 -1.1 7.7 7.3 8.2 8.5 8.1 8.4 90 0 0.0 8.2 000000 1017.5 0.0 0.0 4.5
14 8 09 05 02 97 14.4 62 18.2 12.7 6.7 10.5 10.2 10.2 9.5 8.7 8.4 90 0 0.0 0.0 000000 1010.5 0.0 0.0 3.2
15 6 13 02 02 97 15.0 59 24.3 8.0 2.5 9.2 9.3 10.3 9.9 9.1 8.5 90 0 0.0 7.6 000000 1016.0 0.0 0.0 3.4
16 0 15 02 02 97 17.1 50 27.3 5.8 0.3 9.1 9.4 10.9 10.6 9.6 8.8 90 0 0.0 12.6 000000 1021.5 0.0 0.0 5.3
17 0 09 05 02 97 16.2 60 24.0 10.8 3.1 10.2 10.5 11.5 11.3 10.2 9.0 90 0 0.0 12.7 000000 1025.0 0.0 0.0 5.6
18 0 12 09 02 97 16.0 76 22.4 10.0 2.1 10.6 10.9 12.0 11.8 10.7 9.3 90 0 0.0 12.6 000000 1029.0 0.0 0.0 5.1
19 8 04 09 02 97 8.1 60 11.5 5.7 1.0 9.9 10.1 11.7 12.0 11.0 9.6 90 0 tr 1.2 000000 1021.0 0.0 0.0 1.8
20 8 06 09 02 97 11.2 73 15.8 6.5 1.2 9.8 9.5 10.3 10.9 10.5 9.9 90 0 0.5 3.5 000000 1008.5 0.3 0.0 2.3
21 8 05 09 02 97 14.3 65 16.7 9.1 6.1 11.3 11.0 10.9 10.9 10.4 9.9 90 0 0.0 8.2 000000 1008.0 0.0 0.0 2.1
22 8 06 02 02 95 9.8 77 19.4 3.3 -2.3 9.5 9.5 10.6 11.0 10.5 9.9 90 0 0.0 10.1 000000 1016.0 0.0 0.0 3.0
23 0 07 05 02 97 12.0 68 19.6 4.9 -1.3 8.9 9.4 11.1 10.6 10.8 9.9 90 0 0.0 12.0 000000 1017.0 0.0 0.0 4.4
24 8 09 05 02 95 10.5 82 16.1 5.8 0.1 10.0 10.1 11.4 11.7 11.0 10.0 90 0 1.0 0.5 000000 1014.0 0.4 0.0 0.6
25 4 12 02 02 96 14.9 69 17.2 7.5 4.2 10.6 10.7 11.5 11.5 10.8 10.1 10 0 6.8 1.0 000000 1010.0 5.4 0.0 1.4
26 8 19 05 02 97 11.0 86 17.1 8.7 6.2 11.2 11.1 11.5 11.5 10.8 10.2 10 0 1.9 9.0 000000 1004.0 0.6 0.0 1.9
27 6 22 13 02 97 14.1 68 17.0 9.5 5.0 11.2 10.9 11.6 11.9 11.0 10.2 10 0 7.0 4.3 000000 1004.0 6.7 0.0 2.1
28 8 18 09 61 96 12.1 94 14.4 10.2 8.1 11.7 11.6 12.1 12.0 11.2 10.4 10 0 0.8 0.0 000000 994.5 1.0 0.0 0.6
29 3 18 09 03 97 13.0 75 17.5 8.2 4.1 10.1 10.3 11.5 11.7 11.1 10.5 10 0 1.9 8.8 000000 1005.5 0.2 0.0 1.9
30 7 18 02 02 97 11.8 82 17.1 9.0 4.6 11.1 11.4 12.5 12.1 11.2 10.5 10 0 11.2 4.8 005100 1004.5 1.8 0.0 1.4
Monthly means
11.2 71 16.2 5.5 0.4 8.5 8.6 9.8 10.1 9.6 9.2 1015.7
Monthly totals
34.9 198.9 19.8 23.2 76.8
Highest values
17.1 27.3 12.7 8.1 11.7 11.6 12.5 12.1 11.2 10.5 11.2 12.7 6.7 6.7 5.6
Lowest values
4.6 50 8.5 -1.8 -6.9 3.8 4.4 6.6 7.9 7.8 8.4
1971-2000 monthly climatological averages
77 13.7 4.9 2.0 7.5 7.9 8.6 9.0 8.5 8.3 47.2 143.1 1015.4 50.4 6.6 44.2
Number of days with
2003 normal
Snow/sleet falling 1 1.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 1 1.0
Thunder 1 0.8
Gale 0 0.0
Fog at 09GMT 0 0.1
Air frost 4 1.0
Ground frost 12 9.0
0.2mm precipitation 9 12.8
1.0mm precipitation 7 9.5
5.0mm precipitation 3 3.2
No sunshine 3 3.1
Only 0.5mm of rain between 2nd and 23rd. Equal warmest April since 1987, but
not as sunny as last year. The 16th was the warmest April day for over
50 years. Driest April since 1997.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
2 sky not changing
3 cloud increasing
20 recent drizzle
25 recent rain shower
61 continuous slight rain
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (X1 slight snow, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR MAY 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 1 20 05 25 97 12.4 55 16.9 7.6 2.7 10.6 10.6 10.6 12.1 11.1 10.6 10 0 4.1 7.3 000000 1009.5 5.8 0.0 2.2
02 8 15 02 61 95 12.3 67 14.0 9.9 7.1 11.8 11.8 12.5 12.4 11.4 10.7 10 0 6.9 1.8 000000 1001.5 5.1 0.0 1.2
03 5 18 09 02 97 12.7 73 18.2 6.9 2.1 9.9 10.0 11.3 12.0 11.2 10.8 10 0 0.0 4.3 000000 1016.5 0.0 0.0 2.4
04 3 15 02 02 97 18.2 55 22.5 6.7 1.9 10.7 10.7 11.5 12.0 11.3 10.8 10 0 0.0 13.4 000000 1010.5 0.0 0.0 4.0
05 7 20 09 02 97 13.3 73 18.3 11.1 7.4 12.7 12.7 13.3 13.1 11.9 10.9 10 0 0.0 10.2 000000 1008.5 0.0 0.0 2.6
06 0 22 05 02 97 13.0 59 19.1 3.9 -0.1 9.9 10.5 12.6 13.1 12.1 11.0 10 0 0.0 12.5 000000 1020.0 0.0 0.0 2.6
07 3 20 02 02 97 13.0 71 21.6 4.7 0.9 10.0 10.9 12.8 13.3 12.3 11.1 00 0 0.0 13.5 000000 1025.0 0.0 0.0 2.3
08 7 18 05 02 97 13.4 77 16.0 8.3 3.5 12.2 12.4 13.4 13.8 12.5 11.4 00 0 0.0 0.3 000000 1018.0 0.0 0.0 1.5
09 1 18 02 02 97 13.0 64 19.4 6.5 2.6 10.7 11.3 12.8 13.4 12.5 11.5 00 0 0.0 13.2 000000 1017.0 0.0 0.0 2.5
10 4 19 05 02 97 13.1 61 15.0 5.7 1.2 12.3 12.1 13.1 13.4 12.7 11.5 00 0 tr 2.8 000000 1018.5 0.0 0.0 1.7
11 1 21 02 02 97 12.5 60 16.6 4.2 0.0 11.1 10.9 12.3 12.9 12.5 11.6 00 0 1.3 7.0 000000 1017.0 0.3 0.0 1.6
12 3 18 05 02 97 12.7 68 15.3 6.5 1.9 10.0 10.5 12.3 13.0 12.3 11.6 00 0 3.3 4.0 000100 1012.0 0.8 0.0 1.1
13 7 24 05 02 97 11.2 61 15.0 3.6 -0.6 8.8 9.3 11.4 12.6 12.2 11.6 10 0 10.6 7.1 005100 1014.5 2.6 0.0 1.1
14 7 22 09 02 97 11.0 64 16.9 3.3 -0.4 8.3 8.7 10.5 11.9 11.8 11.5 10 0 tr 10.9 000000 1019.0 0.0 0.0 2.1
15 1 36 02 02 97 11.4 60 16.8 2.5 -1.1 8.6 9.3 11.4 12.4 11.7 11.5 10 0 4.4 12.7 000000 1022.0 5.8 0.0 2.6
16 8 12 02 61 95 11.0 94 13.5 8.5 2.9 10.8 11.2 12.2 12.9 11.9 11.4 10 0 4.7 0.0 000000 1012.5 7.4 0.0 0.4
17 8 18 05 02 97 12.7 93 16.5 8.7 6.8 12.3 12.1 12.0 12.1 11.7 11.5 10 0 4.9 1.2 000000 1004.5 2.3 0.0 1.1
18 7 22 09 02 97 14.6 74 16.6 10.6 6.7 12.8 12.2 12.2 12.3 11.7 11.4 10 0 0.5 0.6 000000 1005.5 0.6 0.0 1.3
19 8 23 05 02 97 14.1 78 17.1 10.1 5.2 11.8 11.7 12.4 12.5 11.8 11.4 10 0 8.3 4.7 000000 1005.0 2.0 0.0 0.7
20 8 22 09 02 97 11.9 75 15.9 7.2 3.1 10.4 10.6 12.0 12.9 11.9 11.5 10 0 0.6 2.0 005000 1010.5 0.4 0.0 2.2
21 6 25 09 02 97 15.9 71 17.4 9.1 6.3 11.6 11.6 12.2 12.6 11.9 11.6 10 0 2.8 3.4 000000 1020.0 3.8 0.0 1.2
22 8 22 09 02 97 15.3 91 19.4 12.5 10.0 13.8 13.4 13.4 13.1 12.2 11.5 10 0 5.1 0.5 000000 1019.5 1.9 0.0 1.2
23 8 23 05 60 97 14.8 76 17.9 12.2 10.0 13.2 13.2 13.5 13.2 12.3 11.6 10 0 4.3 3.5 000000 1009.5 0.6 0.0 2.2
24 7 22 05 02 97 16.4 67 18.6 9.4 6.5 13.5 13.7 13.4 13.3 12.4 11.7 10 0 0.5 5.5 000000 1004.0 0.2 0.0 1.7
25 2 25 05 01 97 16.0 66 18.5 8.2 5.0 13.3 13.6 12.9 13.3 12.7 11.9 10 0 0.0 6.0 000000 1012.0 0.0 0.0 1.6
26 1 27 02 01 97 16.4 63 19.4 7.0 3.6 14.5 14.6 13.5 13.5 12.9 12.1 10 0 0.0 12.5 000000 1021.5 0.0 0.0 2.2
27 7 22 05 02 97 14.8 83 20.0 10.6 7.5 14.0 14.2 14.9 14.2 13.2 12.0 00 0 0.0 0.2 000000 1023.5 0.0 0.0 1.0
28 7 09 02 02 96 20.0 58 24.1 14.1 13.0 15.7 15.9 15.5 14.6 13.5 12.2 00 0 0.0 4.7 000000 1023.0 0.0 0.0 2.1
29 6 05 05 02 96 21.2 62 26.2 10.9 5.5 16.1 16.2 16.0 15.4 14.1 12.3 00 0 0.0 12.5 000000 1017.5 0.0 0.0 3.2
30 1 04 05 02 96 21.8 54 27.0 11.6 6.0 16.8 16.9 16.6 15.8 14.5 12.6 00 0 0.0 12.6 000000 1014.7 0.0 0.0 2.7
31 0 04 05 02 06 23.5 57 28.5 13.3 7.0 18.0 18.2 18.0 16.6 14.9 13.0 90 0 0.0 14.0 000000 1010.5 0.0 0.0 3.7
Monthly means
14.6 69 18.7 8.2 4.3 12.1 12.3 13.0 13.2 12.4 11.5 1014.3
Monthly totals
62.3 204.9 39.6 0.0 60.0
Highest values
23.5 28.5 14.1 13.0 18.0 18.2 18.0 16.6 14.9 13.0 10.6 14.0 7.4 0.0 4.0
Lowest values
11.0 54 13.5 2.5 -1.1 8.3 8.7 10.5 11.9 11.1 10.6
1971-2000 monthly climatological averages
73 17.4 8.0 5.6 11.0 11.2 12.4 12.4 11.5 10.5 50.9 187.6 1015.9 37.2 0.1 69.1
Number of days with
2003 normal
Snow/sleet falling 0 0.1
50% snow cover 09GMT 0 0.0
Hail or ice pellets 1 0.5
Thunder 2 1.9
Gale 0 0.0
Fog at 09GMT 0 0.0
Air frost 0 0.1
Ground frost 4 2.2
0.2mm precipitation 15 12.2
1.0mm precipitation 12 8.8
5.0mm precipitation 4 2.9
No sunshine 1 2.8
Frequent rain during the first 24 days, then a drier, anticyclonic spell
to end the month. Another sunny month with daytime temperatures above average.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 60 intermttent slight rain
2 sky not changing 61 continuous slight rain
3 cloud increasing
25 recent rain shower
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR June 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 17 05 02 96 18.2 70 22.4 13.1 9.4 18.3 18.2 18.3 17.1 15.5 13.1 90 0 0.2 2.0 000000 1008.0 0.2 0.0 1.6
02 8 23 02 02 97 16.4 85 22.9 14.0 11.8 17.1 17.2 17.8 17.1 15.5 13.5 90 0 0.0 7.0 000000 1005.5 0.0 0.0 1.9
03 6 15 02 02 97 17.9 56 21.4 10.1 7.1 15.3 15.8 16.9 16.8 15.5 13.8 90 0 0.8 2.2 000000 1008.5 0.6 0.0 1.7
04 8 16 02 02 97 15.1 90 20.1 12.6 8.5 15.9 16.0 16.8 16.5 15.5 13.9 90 0 3.6 1.8 000000 1008.5 2.8 0.0 1.0
05 0 10 05 02 97 17.7 70 21.5 9.0 5.2 13.2 13.9 15.9 16.1 15.2 14.0 10 0 0.0 9.2 000000 1017.0 0.0 0.0 1.8
06 8 18 02 02 97 16.1 70 18.5 11.0 7.9 15.0 15.2 16.4 16.2 15.3 14.0 10 0 3.8 0.1 000000 1016.5 2.6 0.0 0.9
07 8 20 05 02 96 18.5 84 23.1 13.3 12.5 16.7 16.4 16.3 15.9 15.2 14.0 10 0 2.3 10.4 000000 1014.0 3.0 0.0 2.3
08 8 18 02 21 97 14.9 86 21.0 12.7 10.9 16.6 16.6 17.2 16.9 15.5 14.0 10 0 4.2 7.0 000100 1007.5 1.9 0.0 1.6
09 0 18 02 02 97 17.3 58 21.5 9.1 4.2 13.2 13.9 15.8 16.4 15.5 14.1 10 0 0.4 11.2 000000 1017.0 0.2 0.0 2.9
10 8 22 02 02 97 17.2 90 22.3 11.1 11.6 16.6 16.6 17.2 16.9 15.6 14.1 10 0 tr 7.1 000000 1010.0 0.0 0.0 2.6
11 6 20 05 03 97 17.7 67 21.4 13.2 8.9 16.0 16.1 16.8 16.8 15.7 14.2 10 0 0.0 7.6 000000 1016.0 0.0 0.0 2.2
12 8 22 02 03 97 18.0 66 23.8 12.9 7.0 15.6 16.1 17.0 16.8 15.7 14.4 00 0 0.0 11.5 000000 1017.5 0.0 0.0 3.0
13 1 15 02 02 97 19.5 52 24.3 8.7 3.8 14.8 15.6 17.4 17.1 16.0 14.5 00 0 0.7 13.2 000000 1022.0 1.1 0.0 3.5
14 3 15 09 02 97 21.1 40 25.3 11.5 11.2 17.9 18.1 18.5 17.9 16.5 14.7 00 0 0.0 10.7 000000 1018.5 0.0 0.0 4.0
15 3 32 02 02 97 19.5 51 27.3 10.2 6.2 17.2 17.2 18.4 18.1 17.0 14.9 00 0 0.0 14.2 000000 1020.0 0.0 0.0 3.3
16 1 27 02 02 97 24.2 52 27.1 13.6 9.4 18.1 18.6 19.5 18.8 17.3 15.0 00 0 0.0 13.7 000000 1014.5 0.0 0.0 3.8
17 7 14 02 02 96 21.3 63 25.7 14.2 10.0 18.8 19.1 19.9 19.1 17.7 15.3 00 0 6.5 3.6 000100 1008.0 0.8 0.0 1.9
18 7 22 05 02 97 19.1 66 20.7 12.9 10.0 16.6 17.2 18.9 18.8 17.7 15.5 10 0 0.0 1.8 000000 1016.5 0.0 0.0 1.8
19 8 22 02 02 97 18.7 82 23.9 14.1 13.0 17.7 17.8 18.4 18.1 17.5 15.6 10 0 tr 4.6 000000 1019.5 0.0 0.0 1.7
20 1 25 09 02 97 18.1 56 23.0 10.5 6.6 15.0 15.9 17.7 18.0 17.3 15.7 00 0 0.0 13.9 000000 1020.5 0.0 0.0 3.4
21 6 18 09 02 97 17.7 64 25.9 9.8 6.1 16.9 17.2 18.3 18.4 17.5 15.7 00 0 1.8 10.8 000000 1019.0 1.4 0.0 3.9
22 8 11 05 95 96 18.5 85 26.6 15.3 11.4 18.3 18.8 19.4 18.9 17.7 15.8 10 0 22.0 1.8 000100 1005.0 6.5 0.0 1.6
23 8 27 09 21 96 17.4 86 24.1 15.7 13.7 18.3 18.4 19.1 18.4 17.7 15.9 10 0 0.0 9.0 000000 1004.5 0.0 0.0 1.7
24 0 32 05 02 96 17.4 57 24.1 9.5 6.0 14.9 16.1 18.2 18.5 17.7 16.0 10 0 0.0 14.2 000000 1017.5 0.0 0.0 2.7
25 6 09 02 02 97 20.2 55 22.0 12.8 8.8 16.8 17.7 19.1 19.3 18.1 16.1 00 0 tr 5.4 000000 1019.5 0.0 0.0 3.5
26 7 05 05 02 97 19.6 72 25.0 14.6 11.8 17.7 17.9 18.9 18.7 17.9 16.2 00 0 0.0 4.4 000000 1013.5 0.0 0.0 3.0
27 8 09 02 02 96 19.3 86 22.9 15.8 12.6 19.0 19.2 19.8 19.3 18.0 16.3 00 0 0.0 0.1 000000 1012.5 0.0 0.0 1.3
28 6 22 02 02 97 17.3 69 23.7 10.1 5.9 17.2 16.9 17.5 18.4 18.0 16.4 00 0 0.0 11.3 000000 1014.5 0.0 0.0 2.4
29 2 10 09 02 97 21.7 47 27.7 9.7 6.0 17.6 17.2 18.4 18.5 18.3 16.4 00 0 5.8 8.6 000100 1008.0 2.5 0.0 4.3
30 8 18 05 60 97 17.5 88 19.9 14.8 12.0 18.1 18.3 19.0 18.9 17.8 16.4 10 0 6.1 2.8 000000 1000.5 2.0 0.0 1.0
Monthly means
18.4 69 23.3 12.2 9.0 16.7 17.0 18.0 17.8 16.7 15.0 1013.3
Monthly totals
58.2 221.2 25.6 0.0 72.3
Highest values
24.2 27.7 15.8 13.7 19.0 19.2 19.9 19.3 18.3 16.4 22.0 14.2 6.5 0.0 4.3
Lowest values
14.9 40 18.5 8.7 3.8 13.2 13.9 15.8 15.9 15.2 13.1
1971-2000 monthly climatological averages
74 20.0 10.9 8.9 14.3 14.6 15.6 15.3 14.4 12.9 52.0 180.0 1016.8 36.4 0.0 72.4
Number of days with
2003 normal
Snow/sleet falling 0 0.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.1
Thunder 4 2.0
Gale 0 0.0
Fog at 09GMT 0 0.1
Air frost 0 0.1
Ground frost 0 2.2
0.2mm precipitation 13 11.5
1.0mm precipitation 9 8.9
5.0mm precipitation 4 3.5
No sunshine 0 2.3
The warmest June since 1976 and the second warmest in the last 50 years.
However, there were no very hot spells and the warmth was more a result
of a lack of cold days or nights.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
2 sky not changing 60 intermittent light rain
3 cloud increasing 95 moderate thunderstorm with rain
21 recent rain
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR July 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 14 05 02 97 15.8 94 20.6 11.9 8.2 16.0 16.4 17.7 18.0 17.6 16.4 10 0 6.0 2.5 000000 998.5 2.2 0.0 1.0
02 8 32 09 02 97 15.9 84 21.5 14.2 11.6 16.6 16.8 17.7 17.9 17.4 16.4 10 0 tr 2.5 000000 1005.5 0.0 0.0 1.4
03 8 27 05 02 97 14.7 86 20.1 13.3 10.9 16.0 16.3 17.5 17.7 17.2 16.3 10 0 0.9 1.2 000000 1012.0 0.8 0.0 1.4
04 8 27 02 02 97 17.5 72 21.6 11.2 7.5 15.5 15.8 17.0 17.4 17.2 16.2 10 0 0.0 3.5 000000 1016.5 0.0 0.0 2.2
05 1 27 09 02 97 18.2 65 20.3 10.7 7.1 15.1 15.6 17.3 17.5 17.0 16.1 10 0 0.0 3.8 000000 1019.0 0.0 0.0 1.8
06 1 30 09 02 97 20.3 57 22.9 13.9 10.7 16.7 16.7 17.4 17.5 17.1 16.1 10 0 0.0 6.8 000000 1020.5 0.0 0.0 2.0
07 1 28 02 02 97 20.4 60 22.5 10.9 7.1 15.3 16.0 17.5 17.8 17.2 16.1 10 0 0.0 8.2 000000 1022.5 0.0 0.0 2.0
08 8 18 02 02 97 19.9 79 24.4 12.6 9.0 16.9 17.2 17.9 17.9 17.3 16.1 00 0 tr 1.1 000000 1022.0 0.0 0.0 1.6
09 5 16 02 02 97 24.3 70 27.9 15.2 11.5 17.9 18.3 18.6 18.2 17.3 16.1 00 0 0.0 6.2 000000 1021.5 0.0 0.0 2.6
10 1 18 05 02 97 25.0 60 28.1 14.5 10.2 17.7 18.3 19.4 18.8 17.7 16.2 00 0 0.0 11.5 000000 1018.5 0.0 0.0 3.4
11 5 27 09 02 97 21.2 65 24.6 12.7 9.7 18.9 19.3 20.4 19.9 18.3 16.5 00 0 0.0 13.4 000000 1019.5 0.0 0.0 3.6
12 5 36 02 02 97 20.9 52 26.9 10.9 8.1 17.7 18.3 19.6 19.7 18.7 16.7 00 0 0.0 14.9 000000 1022.0 0.0 0.0 3.7
13 1 09 09 02 97 22.9 46 29.2 12.3 9.2 18.4 18.9 20.0 20.1 19.0 16.9 00 0 0.0 14.9 000000 1020.5 0.0 0.0 5.4
14 0 12 09 02 97 24.8 55 30.6 14.4 10.9 18.3 18.9 20.6 20.5 19.3 17.0 00 0 0.0 14.8 000000 1014.5 0.0 0.0 5.2
15 3 07 09 02 97 27.3 43 33.1 16.5 12.1 20.1 20.6 21.5 21.0 19.6 17.2 00 0 0.0 14.1 000000 1009.5 0.0 0.0 5.9
16 1 05 02 02 97 22.2 73 23.6 18.7 14.2 21.2 21.7 22.4 21.5 20.1 17.4 00 0 10.5 2.5 000000 1005.0 8.5 0.0 1.1
17 8 21 05 60 95 16.6 94 20.4 16.6 15.1 19.4 19.9 20.6 20.7 19.7 17.7 10 0 2.3 0.0 000000 1010.0 3.3 0.0 1.3
18 7 23 09 80 97 18.1 70 24.4 15.5 12.8 17.8 18.3 19.4 19.8 19.2 17.7 10 0 tr 6.6 000000 1019.0 0.0 0.0 2.2
19 2 15 05 02 97 23.1 59 27.5 15.3 11.9 18.7 18.7 19.1 19.4 18.9 17.6 10 0 0.0 10.5 000000 1017.0 0.0 0.0 3.6
20 7 20 09 02 97 20.8 58 24.2 15.1 11.5 18.8 18.9 20.0 20.1 19.3 17.6 00 0 0.0 10.7 000000 1014.0 0.0 0.0 3.1
21 5 15 09 02 97 19.8 70 24.4 13.3 10.1 17.7 18.3 19.7 20.0 19.3 17.6 00 0 tr 5.7 000000 1012.5 0.0 0.0 2.9
22 7 23 05 02 97 21.0 66 24.0 14.0 10.5 18.3 18.4 19.6 19.8 19.2 17.6 00 0 0.0 5.8 000000 1018.0 0.0 0.0 2.7
23 8 19 05 02 97 18.1 69 23.6 15.4 12.5 18.8 19.0 19.8 19.8 19.2 17.6 00 0 0.2 2.3 000000 1017.5 1.2 0.0 2.2
24 7 21 02 02 97 17.0 85 23.1 14.5 11.9 17.8 18.4 19.5 19.5 19.0 17.6 00 0 1.9 7.0 000000 1013.0 4.3 0.0 2.6
25 8 19 09 60 96 16.3 95 20.4 15.8 13.1 18.0 18.6 19.5 19.5 19.0 17.7 00 0 4.8 3.8 000000 1007.5 4.5 0.0 1.0
26 7 11 02 03 97 17.8 75 20.4 10.8 6.6 16.9 16.6 17.6 18.4 18.5 17.6 10 0 7.9 1.2 000000 1009.0 6.9 0.0 1.3
27 7 23 09 02 97 19.1 81 23.4 14.6 13.0 17.9 17.7 18.0 18.3 18.4 17.5 10 0 0.0 10.3 000000 1010.5 0.0 0.0 2.6
28 4 18 02 01 97 19.8 59 22.4 10.5 7.0 15.9 16.3 17.8 18.7 18.3 17.4 10 0 0.1 5.7 000000 1019.5 0.2 0.0 2.6
29 7 18 09 02 97 18.4 75 20.3 15.6 12.3 18.1 18.2 18.9 18.9 18.4 17.4 10 0 1.8 0.3 000000 1021.0 2.2 0.0 1.3
30 8 25 05 02 97 20.1 70 25.1 16.3 14.0 17.7 18.0 18.5 18.5 18.3 17.3 10 0 0.0 6.2 000000 1016.0 0.0 0.0 1.9
31 7 25 02 01 97 19.1 71 23.0 14.8 10.9 17.3 17.7 18.5 18.8 18.3 17.2 00 0 4.5 2.5 000000 1018.5 3.7 0.0 2.2
Monthly means
19.9 70 24.0 13.9 10.7 17.7 18.0 19.0 19.1 18.4 17.0 1015.2
Monthly totals
40.9 200.5 37.8 0.0 77.8
Highest values
27.3 33.1 18.7 15.1 21.2 21.7 22.4 21.5 20.1 17.7 10.5 14.9 8.5 0.0 5.9
Lowest values
14.7 43 20.1 10.5 6.6 15.1 15.6 17.0 17.4 17.0 16.1
1971-2000 monthly climatological averages
74 22.7 13.0 11.0 16.3 16.8 17.7 17.5 16.6 15.3 39.7 193.4 1017.1 29.5 0.0 78.5
Number of days with
2003 normal
Snow/sleet falling 0 0.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.2
Thunder 0 2.0
Gale 0 0.0
Fog at 09GMT 0 0.0
Air frost 0 0.0
Ground frost 0 0.0
0.2mm precipitation 10 10.7
1.0mm precipitation 8 7.5
5.0mm precipitation 3 2.3
No sunshine 1 1.5
A warm month, and although the sunshine total was above average there were few very sunny days.
33.1C on the 15th was the highest July temperature since 1976 and the highest for any month since August 1995.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 60 intermittent slight rain
2 sky not changing 61 continuous light rain
3 cloud increasing 80 slight rain shower
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR August 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 20 02 02 96 16.3 95 18.5 15.3 11.0 17.5 17.9 18.7 18.9 18.4 17.3 10 0 1.4 0.0 000000 1018.0 1.4 0.0 0.4
02 4 00 00 02 97 19.8 60 25.8 10.5 7.2 15.4 16.0 17.5 18.2 18.1 17.3 10 0 0.0 14.2 000000 1024.0 0.0 0.0 3.1
03 0 16 02 02 97 22.9 56 29.4 10.7 7.5 15.6 16.3 17.9 18.9 18.3 17.2 00 0 0.0 13.4 000000 1024.0 0.0 0.0 3.7
04 0 04 02 02 97 22.5 70 31.9 14.6 11.1 17.7 18.2 19.4 19.6 18.7 17.4 00 0 0.1 11.5 000000 1024.5 0.0 0.0 4.9
05 3 05 02 60 97 25.7 69 32.0 18.5 14.3 19.9 20.1 20.8 20.4 19.3 17.5 00 0 0.0 8.0 000000 1024.0 0.0 0.0 6.5
06 1 00 00 02 97 26.0 61 35.0 19.1 15.0 20.4 20.6 21.1 20.6 19.7 17.6 00 0 0.0 13.2 000000 1021.0 0.0 0.0 4.8
07 0 30 02 05 95 26.4 81 29.8 16.7 13.1 19.9 20.6 21.9 21.5 20.2 17.9 00 0 0.0 9.6 000000 1021.5 0.0 0.0 3.1
08 0 32 02 05 95 23.5 70 30.7 17.1 13.1 20.3 20.9 21.9 21.5 20.5 18.1 00 0 0.0 13.7 000000 1021.0 0.0 0.0 2.6
09 0 00 00 05 96 27.0 63 34.9 16.8 13.5 20.3 20.9 22.0 21.7 20.7 18.3 00 0 0.0 12.5 000000 1019.5 0.0 0.0 5.0
10 0 04 02 05 96 28.5 48 37.2 16.8 13.5 21.5 22.0 22.5 21.8 20.9 18.4 00 0 0.0 11.5 000000 1016.0 0.0 0.0 5.9
11 6 04 05 05 95 23.7 72 33.4 19.7 16.0 22.0 22.5 23.5 22.1 21.1 18.7 00 0 0.0 11.0 000000 1017.5 0.0 0.0 4.6
12 7 36 09 05 96 21.0 85 30.3 18.3 15.5 21.0 21.5 22.0 22.2 21.4 18.9 00 0 0.0 6.5 000000 1020.5 0.0 0.0 2.8
13 1 27 05 05 95 22.3 60 28.7 16.2 12.5 20.5 21.0 21.0 22.1 21.4 18.9 00 0 0.0 11.0 000000 1021.5 0.0 0.0 6.0
14 4 32 02 01 97 18.7 49 25.4 14.5 11.0 19.5 20.0 20.5 21.5 21.0 19.0 00 0 0.0 13.5 000000 1021.0 0.0 0.0 4.3
15 1 04 05 03 97 19.7 55 24.8 10.8 7.0 18.5 18.5 19.0 20.7 20.8 18.9 00 0 0.0 11.5 000000 1021.0 0.0 0.0 4.5
16 7 36 05 02 97 19.6 51 23.9 14.4 10.5 19.5 20.0 19.5 20.6 20.4 18.9 00 0 0.0 3.0 000000 1021.5 0.0 0.0 4.7
17 2 15 05 02 97 18.6 80 26.5 14.1 10.5 19.0 19.5 19.5 20.6 20.3 18.9 00 0 0.0 5.0 000000 1017.0 0.0 0.0 3.2
18 3 27 05 01 97 18.1 73 25.0 15.2 12.0 20.0 20.0 19.5 20.6 20.1 18.8 01 0 8.3 1.5 000000 1013.0 0.5 0.0 2.2
19 7 32 09 03 97 21.0 76 23.1 10.5 7.5 16.5 16.5 17.5 19.4 19.7 18.8 00 0 0.0 5.0 000000 1022.5 0.0 0.0 3.4
20 7 32 05 03 97 17.5 68 23.8 8.8 5.4 15.5 15.5 17.0 18.7 19.2 18.7 00 0 0.0 10.5 000000 1023.5 0.0 0.0 3.4
21 7 22 05 02 97 18.4 70 23.2 13.7 10.0 17.0 17.0 18.5 19.0 18.9 18.5 00 0 0.0 3.5 000000 1019.5 0.0 0.0 4.1
22 7 22 09 02 97 21.5 70 26.4 17.1 14.0 18.5 18.5 19.5 19.4 19.0 18.4 00 0 0.0 6.5 000000 1016.0 0.0 0.0 3.7
23 7 22 09 02 96 22.9 65 27.5 17.1 13.5 19.0 19.5 19.0 19.2 19.2 18.5 00 0 0.0 7.0 000000 1020.0 0.0 0.0 2.7
24 8 00 00 02 96 22.0 82 26.4 19.6 16.9 20.2 20.4 20.8 20.4 19.8 18.5 00 0 0.0 3.5 000000 1020.5 0.0 0.0 3.1
25 8 09 05 02 97 17.6 73 21.4 14.2 10.4 18.8 18.9 19.9 20.0 19.8 18.5 00 0 0.0 0.3 000000 1020.5 0.0 0.0 2.7
26 7 09 02 02 97 17.9 63 23.2 13.8 9.5 17.6 18.1 19.4 19.5 19.6 18.5 00 0 0.0 2.3 000000 1018.0 0.0 0.0 3.0
27 8 07 02 02 97 17.7 75 23.9 16.9 13.4 18.8 19.0 19.7 19.5 19.5 18.5 00 0 0.0 3.9 000000 1016.5 0.0 0.0 2.8
28 8 04 02 02 97 16.9 58 18.3 15.1 11.1 17.7 18.3 19.3 19.4 19.5 18.4 01 0 4.6 0.0 000000 1010.5 3.7 0.0 1.8
29 8 36 02 60 96 13.2 96 19.4 12.6 10.0 15.1 15.7 18.6 18.5 19.0 18.4 01 0 0.9 1.9 000000 1007.5 2.4 0.0 2.1
30 0 34 09 02 97 14.8 63 20.3 7.8 4.2 12.8 13.6 17.9 17.4 18.4 18.2 01 0 0.0 10.1 000000 1017.5 0.0 0.0 2.5
31 0 36 02 02 97 17.0 65 20.1 6.8 3.5 12.1 12.8 15.5 17.0 18.0 18.0 00 0 0.0 9.4 000000 1022.0 0.0 0.0 2.9
Monthly means
20.6 68 26.5 14.6 11.1 18.3 18.7 19.7 20.0 19.7 18.3 1019.4
Monthly totals
15.3 234.5 8.0 0.0 111
Highest values
28.5 37.2 19.7 16.9 22.0 22.5 23.5 22.2 21.4 19.0 8.3 14.2 3.7 0.0 6.5
Lowest values
13.2 48 18.3 6.8 3.5 12.1 12.8 15.5 17.0 18.0 17.2
1971-2000 monthly climatological averages
76 22.4 12.6 10.5 16.0 16.7 17.7 17.8 17.3 16.4 54.2 188.5 1016.8 32.1 0.0 78.7
Number of days with
2003 normal
Snow/sleet falling 0 0.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.1
Thunder 0 2.0
Gale 0 0.0
Fog at 09GMT 0 0.3
Air frost 0 0.0
Ground frost 0 0.0
0.2mm precipitation 4 10.1
1.0mm precipitation 3 7.1
5.0mm precipitation 1 3.2
No sunshine 2 1.6
In the past 50 years only July 1983 and August 1995 have been warmer,
while 37.2C on the 10th was the highest temperature ever on record for the town.
Only teh Augusts of 1983 and 1995 have been dries since 1953.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing
2 sky not changing
3 cloud increasing
5 haze
60 intermittent light rain
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR September 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 7 32 02 02 97 15.5 63 19.0 12.4 7.4 14.4 14.9 16.3 17.2 17.8 17.8 00 0 0.0 3.4 000000 1024.5 0.0 0.0 2.8
02 8 33 02 02 97 14.8 73 20.1 10.2 5.5 14.4 14.9 16.3 17.0 17.7 17.6 00 0 0.0 1.2 000000 1029.5 0.0 0.0 2.1
03 8 32 02 02 97 16.5 76 23.2 14.3 11.0 15.7 16.1 17.0 17.3 17.6 17.5 00 0 0.0 1.7 000000 1032.0 0.0 0.0 2.4
04 0 05 02 05 96 18.8 68 25.1 8.8 5.4 13.7 14.6 16.6 17.4 17.6 17.4 00 0 0.0 11.9 000000 1031.0 0.0 0.0 4.6
05 9 00 00 45 02 17.7 76 25.4 11.3 6.2 14.7 15.1 16.5 17.2 17.7 17.3 00 0 tr 3.0 000000 1020.5 0.0 0.0 2.6
06 7 00 00 21 94 16.6 79 22.4 13.3 9.9 16.2 16.3 17.4 17.7 17.8 17.3 00 0 0.1 4.3 000000 1016.0 0.5 0.0 1.7
07 7 18 02 03 97 15.0 73 19.6 7.5 4.1 13.3 13.9 15.9 17.0 17.6 17.1 00 0 0.0 5.0 000000 1018.0 0.0 0.0 1.7
08 6 15 02 02 96 17.3 74 22.3 8.3 4.5 13.1 13.8 15.7 16.5 17.4 17.1 00 0 0.0 2.8 000000 1010.0 0.0 0.0 2.5
09 4 32 09 02 97 15.9 80 21.4 12.8 7.0 14.9 15.6 16.6 16.9 17.4 17.0 00 0 2.9 6.1 000000 1017.0 5.3 0.0 2.4
10 8 18 09 21 95 19.0 88 22.2 12.6 9.5 15.5 15.6 16.6 17.0 17.3 17.0 10 0 0.7 2.9 000000 1012.0 1.0 0.0 1.1
11 2 22 02 02 95 13.4 96 18.4 9.5 5.9 13.4 14.4 16.5 17.1 17.4 16.9 10 0 0.7 0.8 000000 1023.0 1.5 0.0 0.6
12 0 24 02 02 97 15.8 75 20.4 12.3 6.8 13.9 14.9 16.4 16.9 17.2 16.9 10 0 0.0 10.1 000000 1032.0 0.0 0.0 1.8
13 2 17 02 02 97 16.3 70 23.9 8.8 5.0 12.7 13.3 15.4 16.5 17.0 16.8 00 0 0.0 11.2 000000 1033.0 0.0 0.0 2.5
14 6 15 02 02 97 17.8 81 25.6 8.7 5.0 12.8 13.4 15.5 16.4 17.0 16.7 00 0 0.0 10.1 000000 1032.5 0.0 0.0 2.8
15 4 22 02 02 97 18.0 62 25.5 8.3 4.1 12.7 13.1 15.7 16.5 17.0 16.6 00 0 0.0 9.0 000000 1028.0 0.0 0.0 2.7
16 4 23 02 02 97 17.2 70 26.2 8.7 4.6 12.8 13.8 15.9 16.5 17.0 16.6 00 0 0.0 10.8 000000 1026.0 0.0 0.0 2.8
17 4 18 02 02 97 18.4 63 27.3 8.3 4.1 12.8 12.8 15.8 16.7 17.1 16.5 00 0 0.0 11.3 000000 1023.5 0.0 0.0 3.7
18 8 00 00 46 05 17.1 76 19.5 9.7 5.4 13.8 13.8 15.9 16.6 17.1 16.5 00 0 0.0 0.6 000000 1018.5 0.0 0.0 1.4
19 6 18 02 05 96 16.0 89 22.6 11.1 6.5 14.1 14.1 16.0 16.5 17.1 16.5 00 0 0.0 6.1 000000 1019.0 0.0 0.0 1.7
20 0 18 02 02 97 16.8 76 26.0 9.1 5.9 13.4 13.4 15.5 16.2 16.9 16.5 00 0 0.0 10.7 000000 1021.0 0.0 0.0 1.9
21 5 18 02 02 97 18.6 69 24.4 12.1 7.8 14.8 14.9 16.2 16.7 17.0 16.4 00 0 0.0 7.2 000000 1020.5 0.0 0.0 1.7
22 2 20 09 02 97 18.5 88 20.7 15.2 10.4 16.1 16.3 16.9 17.1 17.2 16.4 00 0 8.0 0.7 000000 1006.0 3.2 0.0 0.8
23 1 27 05 02 97 11.9 73 14.7 6.6 2.5 10.6 11.9 14.7 16.3 17.0 16.4 10 0 0.0 11.5 000000 1020.0 0.0 0.0 1.8
24 0 04 02 02 96 11.2 75 17.0 1.9 -1.5 8.1 9.5 13.0 15.0 16.3 16.4 10 0 0.0 11.5 000000 1034.5 0.0 0.0 1.9
25 3 18 02 02 96 12.6 73 19.2 3.1 -1.0 8.4 9.5 12.5 14.4 15.7 16.1 10 0 0.0 10.8 000000 1030.5 0.0 0.0 2.3
26 7 25 02 03 97 12.6 75 20.4 5.0 0.2 9.4 10.1 12.5 14.1 15.6 15.9 00 0 0.0 6.1 000000 1021.5 0.0 0.0 2.0
27 7 03 02 02 97 12.7 74 17.1 10.7 4.1 12.4 12.8 13.9 14.6 15.4 15.7 00 0 tr 2.0 000000 1022.5 0.0 0.0 2.1
28 7 32 05 02 97 12.4 72 16.0 8.4 3.4 12.4 12.4 13.8 14.5 15.4 15.5 00 0 0.0 4.5 000000 1016.5 0.0 0.0 1.2
29 1 24 02 02 96 10.8 79 17.9 2.5 -0.8 8.8 9.9 12.6 14.0 15.3 15.5 00 0 0.0 8.5 000000 1017.0 0.0 0.0 3.0
30 8 09 02 02 96 15.8 73 19.8 7.5 3.2 11.6 11.7 13.0 14.0 14.9 15.3 00 0 0.0 5.0 000000 1012.0 0.0 0.0 3.4
Monthly means
15.7 75 21.4 9.3 5.1 13.0 13.6 15.4 16.3 16.9 16.6 1022.3
Monthly totals
12.4 190.8 11.5 0.0 66.0
Highest values
19.0 27.3 15.2 11.0 16.2 16.3 17.4 17.7 17.8 17.8 8.0 11.9 5.3 0.0 4.6
Lowest values
10.8 62 14.7 1.9 -1.5 8.1 9.5 12.5 14.0 14.9 15.3
1971-2000 monthly climatological averages
83 19.1 10.3 7.9 13.3 13.9 15.0 15.6 15.5 15.4 60.3 131.7 1016.4 41.2 0.0 46.2
Number of days with
2003 normal
Snow/sleet falling 0 0.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.2
Thunder 0 1.2
Gale 0 0.2
Fog at 09GMT 0 0.4
Air frost 0 0.0
Ground frost 3 0.3
0.2mm precipitation 4 12.5
1.0mm precipitation 2 9.1
5.0mm precipitation 1 3.7
No sunshine 0 2.9
Warmest September since 2000, with the highest mean maximum temperature since 1959.
Sunniest September since 1964, the driest since 1997, the most ground frosts since 1979
and the largest evaporation since at least 1992.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 21 recent rain
2 sky not changing 45 fog
3 cloud increasing 46 fog
5 haze
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR OCTOBER 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 7 07 09 02 97 15.0 82 18.2 10.2 5.5 12.1 12.5 13.7 14.1 15.1 15.1 00 0 2.1 0.7 000000 1010.5 2.7 0.0 1.9
02 8 04 02 50 94 13.0 96 16.8 11.2 8.0 15.4 13.3 13.9 14.5 15.2 15.1 10 0 2.3 0.0 000000 1014.5 1.3 0.0 0.2
03 7 33 05 02 97 14.6 82 17.5 13.0 10.1 14.0 14.0 14.5 14.6 15.0 15.0 10 0 tr 0.1 000000 1011.5 0.0 0.0 1.4
04 2 30 05 25 97 9.9 76 13.1 8.7 3.4 11.2 11.8 13.5 14.4 15.0 15.0 10 0 0.9 2.1 000000 1015.0 0.2 0.0 1.5
05 0 32 13 02 97 7.5 60 12.7 3.3 -0.4 7.0 8.2 11.5 13.5 14.6 15.0 10 0 1.3 9.7 000000 1020.5 0.5 0.0 1.9
06 7 28 09 02 97 12.7 79 15.1 7.5 0.2 10.7 10.8 11.8 12.9 14.1 14.8 10 0 tr 3.8 000000 1009.5 0.0 0.0 2.3
07 7 25 09 60 97 12.8 76 14.6 10.9 7.4 10.5 11.0 11.9 13.0 14.0 14.6 10 0 0.1 4.5 000000 1008.0 0.1 0.0 1.9
08 8 22 02 03 97 11.4 85 19.7 4.6 0.2 8.9 9.3 10.9 12.6 13.8 14.4 10 0 0.0 2.4 000000 1017.5 0.0 0.0 1.8
09 2 25 02 02 97 16.0 76 18.2 11.4 5.5 11.5 12.2 13.0 13.4 13.8 14.3 10 0 0.0 7.1 000000 1021.5 0.0 0.0 1.5
10 7 27 05 02 97 16.4 81 18.0 12.9 6.2 12.3 12.6 13.1 13.5 14.1 14.2 00 0 1.3 0.3 000000 1019.5 0.2 0.0 0.8
11 0 29 02 02 96 9.8 93 17.5 6.0 2.2 9.9 10.6 12.6 13.5 14.3 14.3 10 0 0.0 9.0 000000 1026.5 0.0 0.0 1.1
12 6 09 02 02 96 10.3 85 16.4 7.1 2.1 9.1 9.4 11.9 13.2 14.2 14.3 00 0 0.0 5.3 000000 1026.0 0.0 0.0 2.4
13 8 08 02 02 97 13.0 75 16.5 10.3 4.0 10.8 11.1 12.2 13.0 13.9 14.2 00 0 0.0 2.4 000000 1022.5 0.0 0.0 1.9
14 7 05 09 02 97 13.3 76 17.0 9.6 5.4 10.7 11.3 12.6 13.2 14.0 14.1 00 0 0.0 6.2 000000 1025.5 0.0 0.0 2.9
15 3 04 09 02 97 10.4 70 15.9 6.7 1.0 9.0 9.9 11.8 13.1 13.9 14.1 00 0 0.0 8.6 000000 1030.0 0.0 0.0 2.6
16 1 10 05 02 97 10.6 75 15.7 7.2 1.1 8.9 9.4 11.4 12.5 13.7 14.0 00 0 0.0 9.0 000000 1031.0 0.0 0.0 2.2
17 3 07 05 02 97 10.1 80 15.1 6.0 0.0 8.2 8.8 11.0 12.1 13.4 14.0 00 0 0.0 9.4 000000 1026.5 0.0 0.0 1.8
18 3 09 02 02 96 8.5 91 15.8 5.0 -1.0 7.3 8.0 10.2 11.7 13.2 13.7 00 0 0.0 5.0 000000 1021.0 0.0 0.0 1.5
19 6 07 13 02 97 10.9 70 12.9 6.6 0.9 7.9 8.4 10.2 11.5 12.8 13.6 00 0 0.0 4.2 000000 1015.0 0.0 0.0 2.4
20 7 01 05 02 97 7.6 73 11.6 5.9 0.9 7.9 8.6 10.4 11.6 12.7 13.4 00 0 0.0 7.4 000000 1011.5 0.0 0.0 1.7
21 6 00 00 02 95 5.7 81 10.7 0.2 -3.6 5.7 6.6 9.0 11.0 12.5 13.2 00 0 4.4 8.1 000000 1014.5 3.3 0.0 0.9
22 8 07 02 02 96 5.5 95 9.0 5.1 -3.9 6.7 7.6 9.2 10.7 12.0 13.1 10 0 1.3 0.0 000000 1010.0 0.2 0.0 1.3
23 8 06 13 02 97 7.7 78 10.9 5.5 2.3 7.0 7.2 9.0 10.5 11.6 12.9 10 0 0.0 8.8 000000 1019.5 0.0 3.5 1.3
24 6 27 02 02 96 4.6 86 10.6 -1.3 -5.0 3.7 4.4 7.5 9.7 11.4 12.6 10 0 0.0 5.3 000000 1024.5 0.0 3.9 1.1
25 0 33 02 02 97 2.0 89 11.2 -1.3 -5.4 3.3 4.0 7.4 9.2 10.7 12.4 00 0 0.5 3.2 000000 1026.0 0.9 0.0 1.0
26 0 36 05 02 97 6.9 78 11.0 2.0 -3.9 5.5 5.9 7.8 9.4 10.5 12.1 10 0 tr 6.9 000000 1023.0 0.0 0.0 1.0
27 1 32 02 02 97 5.4 92 11.2 -0.5 -5.0 3.2 4.2 7.2 9.2 10.4 11.9 10 0 0.0 8.1 000000 1025.0 0.0 3.8 1.0
28 0 22 02 02 97 3.2 93 11.5 -1.7 -5.5 2.9 3.7 6.4 8.6 10.2 11.8 10 0 5.2 4.9 000000 1019.5 11.5 8.5 1.3
29 8 25 05 61 94 8.2 97 10.3 3.2 1.0 7.2 7.2 7.8 9.0 10.2 11.6 10 0 3.2 1.1 000000 998.0 4.2 0.0 1.0
30 3 27 02 02 96 3.9 98 10.2 2.2 -2.8 5.5 6.0 8.0 9.1 10.0 11.4 10 0 12.0 4.0 000000 993.0 9.4 0.0 0.1
31 8 00 00 02 06 9.2 99 11.2 3.9 -1.0 8.5 8.3 8.5 9.3 10.1 11.3 10 0 0.2 0.2 000000 980.0 0.2 0.0 0.5
Monthly means
9.6 83 14.1 5.9 1.0 8.5 8.9 10.6 11.9 12.9 13.6 1016.7
Monthly totals
34.8 147.8 34.7 19.7 46.2
Highest values
16.4 19.7 13.0 10.1 15.4 14.0 14.5 14.6 15.2 15.1 12.0 9.7 11.5 8.5 2.9
Lowest values
2.0 60 9.0 -1.7 -5.5 2.9 3.7 6.4 8.6 10.0 11.3 75.7 102.2 65.1 4.9 36.4
1971-2000 monthly climatological averages
88 15.0 7.3 4.9 9.9 10.5 11.5 12.2 12.6 13.2 68.7 100.4 1015.1 51.8 4.8 35.6
Number of days with
2003 normal
Snow/sleet falling 0 0.0
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.2
Thunder 0 0.5
Gale 0 0.2
Fog at 09GMT 0 2.0
Air frost 4 0.8
Ground frost 11 4.5
0.2mm precipitation 12 14.0
1.0mm precipitation 9 11.4
5.0mm precipitation 2 4.6
No sunshine 2 6.6
Coldest October since 1993 with the coldest October night since 1997.
Since 1953 only 1997 and 1999 have been sunnier in October. Driest October 1995.
The most October ground frosts (with 1992) since 1953.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
2 sky not changing 50 intermittent slight rain
3 cloud increasing 60 intermittent slight rain
5 haze 61 continuous slight rain
21 recent rain
25 recent rain shower
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR NOVEMBER 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 1 30 09 02 97 8.4 82 12.2 6.0 1.7 7.2 7.5 8.8 9.6 10.2 11.3 10 0 5.7 7.5 000000 997.5 5.2 0.0 1.4
02 8 27 05 61 97 12.2 94 14.0 6.5 1.4 9.0 9.2 8.7 10.0 10.1 11.2 10 0 6.5 3.0 000000 994.0 2.0 0.0 0.9
03 7 22 13 25 97 10.7 88 15.1 9.1 4.0 8.2 8.2 8.5 9.9 10.2 11.1 10 0 0.0 6.4 000000 1000.5 0.0 0.0 1.2
04 9 00 00 43 02 6.5 98 16.6 1.8 -2.2 5.8 6.2 8.3 9.6 10.4 11.1 10 0 0.4 5.8 000000 1027.0 0.7 0.0 1.7
05 8 16 09 02 97 12.3 88 15.6 6.5 0.5 10.7 10.3 10.0 10.0 10.2 11.1 10 0 0.0 6.2 000000 1027.5 0.0 0.0 1.2
06 7 12 02 02 96 10.0 96 17.5 7.0 1.8 8.3 8.3 9.1 10.0 10.4 11.1 10 0 0.0 3.6 000000 1028.5 0.0 0.0 1.0
07 8 09 05 02 95 9.8 95 14.7 7.6 1.4 9.0 9.0 9.5 10.1 10.5 11.1 10 0 0.0 7.0 000000 1030.0 0.0 0.0 2.0
08 8 08 09 02 97 8.7 72 10.2 7.2 1.5 8.0 8.0 9.0 9.9 10.3 11.1 10 0 0.0 0.8 000000 1024.5 0.0 0.0 1.4
09 8 11 02 02 97 6.9 91 10.0 5.4 0.8 7.1 7.2 8.5 9.5 10.3 11.1 10 0 0.8 0.0 000000 1018.5 2.7 0.0 0.1
10 8 15 02 42 07 10.0 98 14.6 6.9 4.2 8.9 8.9 9.3 9.6 10.1 11.1 10 0 0.0 1.4 000001 1024.5 0.0 0.0 0.6
11 8 00 00 41 05 9.0 97 12.3 6.3 0.9 8.9 8.8 9.2 9.9 10.2 11.1 10 0 6.2 0.0 000000 1023.0 4.2 0.0 0.1
12 8 13 02 61 95 12.3 97 14.5 9.0 7.0 10.0 10.1 9.5 10.2 10.1 11.1 10 0 0.0 5.0 000000 1017.5 0.0 0.0 0.5
13 9 22 02 44 02 6.2 97 13.3 3.1 -0.6 6.4 6.9 8.6 9.9 10.2 11.0 10 0 0.2 1.1 000000 1026.0 0.5 0.0 1.0
14 2 20 09 01 97 10.6 85 13.5 6.2 2.4 9.1 9.0 9.2 10.0 10.2 11.0 10 0 tr 5.4 000000 1012.0 0.0 0.0 2.6
15 6 32 05 02 97 9.4 87 14.2 8.7 4.5 8.4 8.5 9.3 9.9 10.2 11.0 10 0 0.0 4.1 000000 1014.5 0.0 0.0 0.8
16 1 27 02 02 97 4.5 93 10.1 3.3 -1.9 6.2 6.9 8.5 9.6 10.0 11.0 10 0 0.0 6.4 000000 1019.0 0.0 0.0 0.7
17 7 22 02 03 97 6.5 95 13.6 1.7 -0.2 5.4 5.5 7.2 8.9 9.8 11.0 10 0 3.7 0.0 000000 1023.5 5.2 0.0 0.3
18 8 20 02 02 97 13.6 92 14.9 6.5 3.2 10.3 10.0 9.4 9.5 9.4 10.7 10 0 0.0 0.0 000000 1023.5 0.0 0.0 1.1
19 8 22 09 02 97 12.5 92 14.4 12.4 8.9 10.8 10.6 10.5 10.2 10.1 10.6 10 0 0.9 0.0 000000 1023.5 3.3 0.0 0.9
20 8 18 02 50 96 11.2 96 12.7 11.2 8.1 10.5 10.7 10.9 10.7 10.4 10.7 10 0 3.4 0.0 000000 1015.0 8.6 0.0 0.3
21 8 22 05 02 96 8.9 96 9.5 8.9 7.2 10.0 10.1 10.6 10.8 10.9 11.0 10 0 13.3 0.0 000000 1010.5 12.7 0.0 0.2
22 8 19 05 63 95 7.9 97 7.9 7.9 4.7 9.0 9.3 9.9 10.5 10.6 11.0 10 0 27.1 0.0 000000 1003.5 20.3 0.0 0.3
23 8 22 02 61 94 7.0 97 7.1 6.8 5.0 7.7 7.8 8.8 9.9 10.2 11.0 10 0 19.1 0.0 000000 1006.0 13.5 0.0 0.4
24 8 36 13 02 97 6.3 89 9.1 6.3 4.0 7.2 7.2 8.3 9.0 9.8 11.0 10 0 0.0 1.5 000000 1010.5 0.0 0.0 0.5
25 8 18 02 02 96 5.7 97 11.9 1.3 -1.7 5.7 5.9 7.9 8.8 9.3 10.7 10 0 35.0 0.1 000000 1009.0 12.4 0.0 0.6
26 8 18 09 61 95 9.1 90 9.1 5.7 3.9 9.2 9.4 9.5 9.1 9.4 10.5 20 0 2.7 3.2 000000 989.5 2.3 0.0 0.5
27 1 00 00 02 97 0.4 98 7.9 0.4 -1.9 4.6 5.2 7.7 8.7 8.3 10.4 10 0 0.0 5.1 000000 1003.5 0.0 0.7 0.4
28 5 24 02 03 97 0.1 96 9.9 -1.5 -4.4 2.8 3.3 5.8 7.5 8.6 10.3 10 0 tr 5.7 000000 1013.0 0.0 8.7 1.2
29 8 22 13 50 97 7.9 94 12.0 0.1 4.0 7.0 6.6 7.0 7.5 8.2 10.0 10 0 4.1 0.0 000000 1007.0 4.0 0.0 0.3
30 1 23 02 02 96 5.4 97 9.8 5.0 -0.8 5.8 6.1 7.2 8.0 8.3 9.9 10 0 9.0 4.0 000000 1005.5 7.7 0.0 0.3
Monthly means
8.3 93 12.3 5.8 2.2 7.9 8.0 8.8 9.6 9.9 10.9 1014.3
Monthly totals
138.1 83.3 105.3 9.4 24.5
Highest values
13.6 17.5 12.4 8.9 10.8 10.7 10.9 10.8 10.9 11.3 35.0 7.5 20.3 8.7 2.6
Lowest values
0.1 72 7.1 -1.5 -4.4 2.8 3.3 5.8 7.5 8.2 9.9
1971-2000 monthly climatological averages
90 10.6 4.0 1.7 6.4 6.8 7.8 8.7 9.1 10.5 61.0 62.1 1015.2 55.6 28.8 21.8
Number of days with
2003 normal
Snow/sleet falling 0 0.5
50% snow cover 09GMT 0 0.0
Hail or ice pellets 0 0.2
Thunder 0 0.2
Gale 0 0.1
Fog at 09GMT 1 3.3
Air frost 8 5.4
Ground frost 11 11.5
0.2mm precipitation 16 13.7
1.0mm precipitation 12 10.4
5.0mm precipitation 8 4.9
No sunshine 10 10.1
As mild as November 2002 and only 0.9C colder than October 2003. The sunniest
November since 1996 but with 10 sunless days. Second succesive very wey November
due mostly to the 20th-25th.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 41 fog patches
2 sky not changing 42-44 fog
3 cloud increasing 50 intermittent slight drizzle
10 mist 61 continuous slight rain
21 recent rain 63 continuous moderate rain
25 recent rain shower
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (00 dry, 10 moist, 20 wet, 90 cracked) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR DECEMBER 2003
0900GMT Temperature Soil temperatures (depth in cm) Rain Fr. Pch
DD N dd ff ww VV Temp RH Max Min Gmin 5 10 20 30 50 100 E SS Rain Sun SLHTGF Press hrs hrs Evap
01 8 09 05 61 96 8.5 96 10.0 5.4 0.0 7.8 7.6 7.0 8.9 8.4 9.7 10 0 7.1 0.0 000000 1000.0 6.8 0.0 0.4
02 2 13 02 02 97 6.9 96 10.5 6.8 1.5 7.3 7.5 7.9 8.6 8.5 9.8 10 0 0.9 1.2 000000 1005.5 2.8 0.0 0.4
03 8 36 02 10 94 8.1 97 9.6 6.9 1.0 7.7 7.7 8.1 8.6 8.6 9.7 10 0 0.0 0.0 000001 1024.5 0.0 0.0 1.0
04 8 04 13 02 97 8.8 82 8.9 7.6 4.0 7.8 7.7 8.2 8.7 8.7 9.7 10 0 0.0 0.0 000000 1031.0 0.0 0.0 1.6
05 8 04 09 02 97 8.4 83 9.0 8.3 5.9 7.7 7.6 8.2 8.9 8.7 9.7 10 0 tr 0.0 000000 1033.0 0.0 0.0 0.8
06 8 09 05 02 96 8.4 93 9.1 1.2 -4.6 6.1 6.0 7.0 8.1 8.5 9.7 10 0 0.1 0.0 000000 1030.0 0.1 0.0 1.7
07 1 05 02 02 97 1.9 87 5.9 1.2 -3.2 3.6 4.1 6.4 7.9 8.2 9.6 10 0 0.0 6.9 000000 1033.5 0.0 1.0 1.1
08 0 36 02 02 96 -1.0 96 7.5 -2.3 -8.5 1.6 2.2 4.5 7.0 7.7 9.6 40 0 tr 2.0 000000 1024.5 0.0 10.1 1.1
09 2 18 02 10 96 7.5 97 9.3 -1.0 -4.5 5.7 4.7 5.6 6.5 7.3 9.2 10 0 tr 6.4 000000 1021.0 0.0 0.0 0.3
10 9 00 00 45 03 0.7 99 9.3 0.7 -3.0 3.8 4.4 5.8 6.5 7.3 9.0 10 0 8.1 0.0 000001 1019.0 5.1 0.0 1.1
11 8 18 02 61 95 9.3 97 11.0 0.6 -1.1 6.2 5.6 5.5 6.4 7.2 9.0 10 0 2.0 0.0 000000 1008.5 2.3 0.0 0.5
12 7 09 02 02 97 5.3 97 13.1 2.2 -1.2 5.1 5.1 6.2 7.0 7.2 8.7 10 0 12.2 0.0 000000 1022.5 12.7 0.0 1.5
13 8 22 05 21 97 13.1 96 13.3 5.3 2.8 10.1 9.6 8.5 7.8 7.4 8.7 20 0 2.0 0.0 000000 1011.0 3.2 0.0 0.8
14 0 27 05 02 97 5.8 80 9.7 5.3 -1.2 5.6 6.1 7.5 8.1 8.0 8.8 10 0 0.0 2.6 000000 1019.0 0.0 0.0 1.3
15 1 32 02 02 97 1.8 89 5.5 1.8 -3.2 6.7 5.0 6.7 7.8 7.9 8.9 10 0 0.0 6.3 000000 1030.5 0.0 5.4 0.7
16 1 36 02 02 97 -2.8 94 4.2 -3.9 -7.6 1.6 2.2 5.5 6.5 7.2 8.8 40 0 0.0 1.2 000000 1032.5 0.0 12.9 0.8
17 0 18 02 02 97 -2.0 98 6.9 -2.8 -7.5 1.6 2.1 5.5 5.9 6.7 8.8 40 0 0.0 6.4 000000 1027.0 0.0 11.2 0.3
18 0 15 02 02 94 0.1 98 7.0 -2.0 -6.4 0.6 1.6 3.9 4.9 6.0 8.5 40 0 0.0 6.4 000000 1020.5 0.0 8.9 0.2
19 8 00 00 02 95 4.7 94 8.0 0.1 -6.0 3.3 3.6 4.0 5.1 5.7 8.1 10 0 3.0 0.0 000000 1019.0 2.7 0.0 0.3
20 8 18 02 61 95 8.0 97 12.3 4.7 -1.2 5.6 4.7 6.0 5.6 5.8 8.0 10 0 3.5 0.0 000000 1008.0 4.2 0.0 1.3
21 7 33 09 02 97 6.1 85 7.0 3.8 -1.1 4.8 4.4 5.1 5.9 6.3 7.8 10 0 0.0 5.2 000000 1010.5 0.0 0.0 1.8
22 0 36 19 02 97 0.6 75 4.4 -0.1 -5.0 0.7 1.2 3.8 5.5 6.2 7.8 40 0 2.8 2.5 000000 1032.5 5.9 0.1 0.9
23 8 18 09 61 95 4.4 97 9.0 0.6 -4.2 3.2 2.8 3.8 5.0 5.7 7.7 10 0 2.2 0.0 000000 1025.5 6.6 0.0 0.2
24 8 22 05 02 97 9.0 95 9.7 4.4 1.9 6.2 5.6 5.5 5.7 5.7 7.5 10 0 0.0 0.0 000000 1029.5 0.0 0.0 0.8
25 7 24 02 02 97 9.6 87 11.0 8.9 5.9 7.2 6.6 6.5 6.4 6.2 7.5 10 0 tr 0.1 000000 1024.4 0.0 0.0 0.8
26 8 18 09 50 96 9.8 93 11.0 9.6 6.0 7.5 7.6 7.4 7.0 6.7 7.6 10 0 1.7 0.0 000000 1008.0 1.3 0.0 1.1
27 1 22 02 02 97 2.8 91 7.9 2.4 -2.2 4.4 4.9 6.5 7.2 7.1 7.8 10 0 2.2 2.4 000000 1001.0 3.0 0.0 0.9
28 4 32 05 02 97 2.6 87 5.2 2.6 -3.1 3.7 4.0 5.6 6.7 6.8 7.9 10 0 3.2 1.9 100000 1000.0 3.4 0.0 0.9
29 8 04 05 61 95 3.0 97 3.0 0.2 -5.1 3.1 3.2 4.5 6.0 6.4 7.8 10 0 6.6 0.0 100000 1007.0 12.3 0.0 0.0
30 8 27 05 60 95 2.6 98 3.9 1.5 -0.9 3.2 3.2 4.4 5.8 6.2 7.6 10 0 1.2 0.0 000000 1018.5 1.9 0.0 0.1
31 8 36 02 02 94 1.7 97 5.3 1.3 -3.3 3.3 3.3 4.4 5.5 5.8 7.5 10 0 5.3 0.0 000000 1032.0 4.5 0.0 0.8
Monthly means
5.0 93 8.3 2.6 -1.8 4.9 4.9 6.0 6.8 7.1 8.6 1019.7
Monthly totals
64.1 51.5 78.8 49.6 25.5
Highest values
13.1 13.3 9.6 6.0 10.1 9.6 8.5 8.9 8.7 9.8 12.2 6.9 12.7 12.9 1.8
Lowest values
-2.8 75 3.0 -3.9 -8.5 0.6 1.2 3.8 4.9 5.7 7.5
1971-2000 monthly climatological averages
90 8.3 2.6 0.4 4.6 4.8 5.7 6.3 6.7 8.1 65.6 40.9 1015.2 59.2 61.4 21.1
Number of days with
2003 normal
Snow/sleet falling 2 1.7
50% snow cover 09GMT 0 1.0
Hail or ice pellets 0 0.3
Thunder 0 0.2
Gale 0 0.2
Fog at 09GMT 2 1.9
Air frost 6 7.9
Ground frost 22 15.3
0.2mm precipitation 16 15.1
1.0mm precipitation 15 11.2
5.0mm precipitation 5 4.9
No sunshine 17 14.7
A changeable month, with some mild days and clear nights giving frequent
ground frosts.
Key
DD: date
07GMT observations
N cloud cover (oktas, 9=obscured) dd wind direction (degrees/10)
ff wind speed (knots)
ww present weather code
1 cloud decreasing 21 recent rain
2 sky not changing 45 fog
3 cloud increasing 50 intermittent slight drizzle
10 mist 60 intermittent slight rain
11 shallow fog patches 61 continuous slight rain
20 recent drizzle
VV visibility (00-50 metres/100, 94 very poor, 95 poor, 96 moderate, 97 good)
Soil temperatures are for 0700GMT beneath bare soil (5, 10, 20cm) or grass (30, 50, 100cm)
09GMT observations
Temp temperature (degC) RH relative humidity (%)
E state of ground (10 moist, 20 wet, 40 frozen, X5 snow) SS snow depth (cm)
Press air pressure (mb)
24 hour readings
Max maximum temperature (degC) beginning 09GMT Min minimum temperature (degC) ending 09GMT
Gmin grass minimum temperature (degC) ending 09GMT Rain precipitation beginning 09GMT
Sun sunshine (hours) sunrise-sunset Rain hrs hours of rainfall (>0.1mm/h) 09-09GMT
Fr. Hrs hours of air frost (00-24GMT) Pch Evap Piche evaporation (ml) beginning 09GMT
Days with
S snow(5) or sleet(1) falling L 50% snow cover at 09GMT H hail or ice pellets
T thunder heard G gale F fog at 09GMT
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MAIDENHEAD METEOROLOGICAL OBSERVATIONS FOR 2003
2002 Climat. Notes
Normal
Air temperature (degC)
Mean maximum 16.3 14.7 Highest on record
Mean minimum 7.1 6.7 0.7C lower than in 2002
Mean 11.7 10.7 Equal warmest year on record
Highest maximum 37.2 30.0 Highest on record
Lowest maximum 1.1 0.0
Highest minimum 19.7 18.0 Warmest night since 1995
Lowest minimum -6.0 -7.1
No. of days with minimum below -5C 1
No. of days with maximum 25C or more 45
No. of days with maximum below 0C 0
No. of days with minimum 15C or more 31
Grass temperature (degC)
Lowest minimum -9.5 -10.9
Mean grass minimum 3.0
Soil temperature (degC)
5cm mean 10.0 9.3
10cm mean 10.2 9.7
20cm mean 11.3 10.6
30cm mean 11.9 11.0
50cm mean 11.8 10.8 Equal warmest on record
100cm mean 11.7 10.9
5cm maximum 22.0
5cm minimum 0.0
10cm maximum 22.5
10cm minimum 0.1
20cm maximum 23.5
20cm minimm 1.4
30cm maximum 22.2 Highest since 1995
30cm minimum 3.1
50cm maximum 21.4 Highest since 1995
50cm minimum 3.6
100cm maximum 19.0 Highest since 1995
100cm minimum 5.2
Sunshine (hr)
Mean daily sunshine amount 5.22 3.96
Total sunshine 1905.9 1446.8 Sunniest year for at least a century locally
Maximum daily sunshine 14.9 14.7
Number of sunless days 50 75.1 Lowest number since 1990
No. of days with over 12h 28 Highest number since 1989
Precipitation (mm)
Total fall 581.8 653.1 Driest year since 1997
Highest daily total 35.0 34.2
No. of days with 0.2mm or more 128 155 Lowest number since before 1953
No. of days with 1.0mm or more 96 143 Lowest number since 1996
No. of days with 5.0mm or more 39 43.2 Lowest number since 1996
Number of days with
Snow or sleet falling 9 11.2
50% snow cover on round at 0900GMT 3 4.7
Hail or ice pellets falling 2 4.5 Lowest number since 1993
Thunder heard 7 12.0 Lowest total since 1996
Fog at 0900GMT 3 14.0 Lowest total since 1967
Air frost 42 41.1
Ground frost 120 92.4 Highest number since 1980
Gale 0 1.9
Air pressure
Mean at 0900GMT 1017.2 1016.0 Highest since 1991
Miscellaneous
Mean relative humidity at 0900GMT 79 Lowest since 1990
Number of hours with rain 460.2 545.9 Lowest since 1990
Number of hours with air frost 280.0 319.8 Highest since 1997
Most hours of rain in a day 20.3
Mean cloud cover at 0700GMT (eighths) 5.1
Mean wind speed at 0700GMT (knots) 4.5
Total piche evaporation (ml) 677.3 576.5 Highest since before 1993
Greatest daily evaporation (ml) 6.5
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Last updated 4 February 2004. This page is maintained by
brugge@met.reading.ac.uk
© 2003 Roger Brugge