Historical weather observations made at the University of Reading, Berkshire, UK

Historical Reading, UK, weather

Today is: 21 January 2019

Shown below are historical weather observations from the University of Reading (Berkshire, UK) climatological station.

Note that the current site on the University's Whiteknights campus was established in 1968-1970; prior to then observations were made closer to the town centre on the London Road.

The London Road observation site was also known as University College - in 1892 University College, Reading was formed; it received its Royal Charter in 1926 then becoming the University of Reading.

The London Road site was typically 0.4degC warmer during the day and 0.6 degC warmer at night with about 12 fewer days of air frost and 32 fewer days of ground frost over the year. Rainfall averages were very similar although sunshine duration amounted to about 90 h less over the year at London Road - which was closer to the (industrial) town centre and in a less rural location. Soil temperatures at London Road were about 0.8 degC higher at a depth of 30 cm when compared to Whiteknights.

Note that in early years measurements were made using imperial units (eg. F, ins and miles) and these have been converted to metric as appropriate. Also, soil depths were measured at depths of 2, 4, 6, 8 and 12 ins and at depths of 2 and 4 feet; these are noted here as being made at depths of 5, 10, 15, 20 and 30 cm and at 2 and 4 feet - the former are almost exact equivalents of the modern-day depths while the latter pair were later superceded by measurements at 50 and 100 cm.

100 years ago 75 years ago 50 years ago 25 years ago
10 years ago 5 years ago 1 year ago


100 years ago - Historical data for: 21 January 1919

Air pressure at 0900 GMT
1013.8 - Mean sea level pressure, mb

Air temperature at 0900 GMT
4.5 - Dry bulb temperature, C
4.3 - Wet bulb temperature, C
4 - Dew point temperature, C
8.1 - Vapour pressure, mb
96 - Relative humidity, %

Extremes of air and surface temperatures
5.2 - Maximum air temperature, C, starting 0900 GMT
3.7 - Minimum air temperature, C, ending 0900 GMT
4.5 - Daily mean air temperature, C
1.5 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
4.1 - at 30 cm depth, C
4.4 - at 2 feet depth, C

Cloud and wind
10 - Cloud cover (tenths) at 0900 GMT; OBS=sky obscured
190 - Wind direction (degrees) at 0900 GMT
2 - Wind speed (knots) at 0900 GMT

Weather details at 0900 GMT
00 - Cloud development not observed

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail or ice pellets fell during 0000-2400 GMT

Visibility at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
0.8 - Rainfall (mm)

75 years ago - Historical data for: 21 January 1944

Air pressure at 0900 GMT
1025.6 - Mean sea level pressure, mb

Air temperature at 0900 GMT
4.9 - Dry bulb temperature, C
3.8 - Wet bulb temperature, C
2 - Dew point temperature, C
7.1 - Vapour pressure, mb
82 - Relative humidity, %

Extremes of air and surface temperatures
10.1 - Maximum air temperature, C, starting 0900 GMT
0.3 - Minimum air temperature, C, ending 0900 GMT
-1.5 - Grass minimum temperature, C, ending 0900 GMT
5.2 - Daily mean air temperature, C
9.8 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
6.2 - at 30 cm depth, C
7.1 - at 4 feet depth, C

Cloud and wind
0 - Cloud cover (tenths) at 0900 GMT; OBS=sky obscured
250 - Wind direction (degrees) at 0900 GMT
5 - Wind speed (knots) at 0900 GMT

Weather details at 0900 GMT
00 - Cloud development not observed

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail or ice pellets fell during 0000-2400 GMT

Visibility at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
0.0 - Rainfall (mm)

50 years ago - Historical data for: 21 January 1969

Air pressure at 0900 GMT
1016.7 - Mean sea level pressure, mb

Air temperature at 0900 GMT
8.4 - Dry bulb temperature, C
7.9 - Wet bulb temperature, C
7 - Dew point temperature, C
10.2 - Vapour pressure, mb
93 - Relative humidity, %

Extremes of air and surface temperatures
12.2 - Maximum air temperature, C, starting 0900 GMT
4.9 - Minimum air temperature, C, ending 0900 GMT
4.7 - Grass minimum temperature, C, ending 0900 GMT
4.6 - Soil minimum temperature, C, ending 0900 GMT
8.6 - Daily mean air temperature, C
7.3 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
6.3 - at 5 cm depth, C
6.0 - at 10 cm depth, C
5.5 - at 20 cm depth, C
5.1 - at 30 cm depth, C
4.9 - at 2 feet depth, C
5.9 - at 4 feet depth, C

Cloud and wind
8 - Cloud cover (eighths) at 0900 GMT; 9=sky obscured
180 - Wind direction (degrees) at 0900 GMT
4 - Wind speed (knots) at 0900 GMT
19 - Maximum wind gust (knots) in 24 hours

Weather details at 0900 GMT
02 - State of sky not changing

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail observed during 0000-2400 GMT

Visibility at 0900 GMT
4000 m to 9 km at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
0.5 - Rainfall (mm)
0.2 - Rainfall duration (hours)

State of the ground at 0900 GMT
0 - Total snow depth (cm) at 0900 GMT
Bare plot soft/muddy, without water

Evaporation in 24 hours beginning 0900 GMT, and sunshine (sunrise-sunset)
0.0 - Sunshine duration (hours)
1.7 - Piche tube evaporation (ml)
0.03 - Standard tank evaporation (mm)

25 years ago - Historical data for: 21 January 1994

Air pressure at 0900 GMT
1026.5 - Mean sea level pressure, mb

Air temperature at 0900 GMT
6.0 - Dry bulb temperature, C
5.6 - Wet bulb temperature, C
5 - Dew point temperature, C
8.8 - Vapour pressure, mb
94 - Relative humidity, %

Extremes of air and surface temperatures
9.9 - Maximum air temperature, C, starting 0900 GMT
3.8 - Minimum air temperature, C, ending 0900 GMT
1.0 - Grass minimum temperature, C, ending 0900 GMT
1.5 - Soil minimum temperature, C, ending 0900 GMT
2.1 - Concrete minimum temperature, C, ending 0900 GMT
6.9 - Daily mean air temperature, C
6.1 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
4.3 - at 5 cm depth, C
4.2 - at 10 cm depth, C
4.8 - at 20 cm depth, C
5.0 - at 30 cm depth, C
5.0 - at 50 cm depth, C
5.9 - at 100 cm depth, C

Cloud and wind
7 - Cloud cover (eighths) at 0900 GMT; 9=sky obscured
200 - Wind direction (degrees) at 0900 GMT
5 - Wind speed (knots) at 0900 GMT
23 - Maximum wind gust (knots) in 24 hours

Weather details at 0900 GMT
02 - State of sky not changing

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail observed during 0000-2400 GMT

Visibility at 0900 GMT
4000 m to 9 km at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
0.0 - Rainfall (mm)
0.0 - Rainfall duration (hours)

State of the ground at 0900 GMT
0 - Total snow depth (cm) at 0900 GMT
Ground surface moist

Evaporation in 24 hours beginning 0900 GMT, and sunshine (sunrise-sunset)
0.4 - Sunshine duration (hours)
1.0 - Piche tube evaporation (ml)
0.19 - Standard tank evaporation (mm)

10 years ago - Historical data for: 21 January 2009

Air pressure at 0900 GMT
1003.7 - Mean sea level pressure, mb

Air temperature at 0900 GMT
0.5 - Dry bulb temperature, C
0.3 - Wet bulb temperature, C
0 - Dew point temperature, C
6.1 - Vapour pressure, mb
96 - Relative humidity, %

Extremes of air and surface temperatures
8.8 - Maximum air temperature, C, starting 0900 GMT
-1.6 - Minimum air temperature, C, ending 0900 GMT
-6.8 - Grass minimum temperature, C, ending 0900 GMT
-2.9 - Soil minimum temperature, C, ending 0900 GMT
-5.0 - Concrete minimum temperature, C, ending 0900 GMT
3.6 - Daily mean air temperature, C
10.4 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
0.5 - at 5 cm depth, C
1.0 - at 10 cm depth, C
2.5 - at 20 cm depth, C
4.1 - at 30 cm depth, C
5.1 - at 50 cm depth, C
6.1 - at 100 cm depth, C

Cloud and wind
1 - Cloud cover (eighths) at 0900 GMT; 9=sky obscured
200 - Wind direction (degrees) at 0900 GMT
5 - Wind speed (knots) at 0900 GMT
26 - Maximum wind gust (knots) in 24 hours

Weather details at 0900 GMT
02 - State of sky not changing

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail observed during 0000-2400 GMT

Visibility at 0900 GMT
4000 m to 9 km at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
4.6 - Rainfall (mm)
12.8 - Rainfall duration (hours)

State of the ground at 0900 GMT
0 - Total snow depth (cm) at 0900 GMT
Ground surface frozen

Evaporation in 24 hours beginning 0900 GMT, and sunshine (sunrise-sunset)
5.2 - Sunshine duration (hours)
2.1 - Piche tube evaporation (ml)
-1.43 - Standard tank evaporation (mm)

5 years ago - Historical data for: 21 January 2014

Air pressure at 0900 GMT
1011.2 - Mean sea level pressure, mb

Air temperature at 0900 GMT
1.0 - Dry bulb temperature, C
0.7 - Wet bulb temperature, C
0 - Dew point temperature, C
6.2 - Vapour pressure, mb
94 - Relative humidity, %

Extremes of air and surface temperatures
8.1 - Maximum air temperature, C, starting 0900 GMT
-0.6 - Minimum air temperature, C, ending 0900 GMT
-4.8 - Grass minimum temperature, C, ending 0900 GMT
-2.1 - Soil minimum temperature, C, ending 0900 GMT
-2.1 - Concrete minimum temperature, C, ending 0900 GMT
3.8 - Daily mean air temperature, C
8.7 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
2.0 - at 5 cm depth, C
2.5 - at 10 cm depth, C
3.1 - at 20 cm depth, C
5.5 - at 30 cm depth, C
6.1 - at 50 cm depth, C
7.5 - at 100 cm depth, C

Cloud and wind
9 - Cloud cover (eighths) at 0900 GMT; 9=sky obscured
Calm - Wind speed (knots) at 0900 GMT
17 - Maximum wind gust (knots) in 24 hours

Weather details at 0900 GMT
45 - Fog or ice fog, sky obscured, no change

Weather details for the day
No snow or sleet fell during 0000-2400 GMT
No snow lying or less than 50 % cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail observed during 0000-2400 GMT

Visibility at 0900 GMT
50 m to 99 m at 0900 GMT
Fog present at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
7.3 - Rainfall (mm)
5.0 - Rainfall duration (hours)

State of the ground at 0900 GMT
0 - Total snow depth (cm) at 0900 GMT
Ground surface moist

Evaporation in 24 hours beginning 0900 GMT, and sunshine (sunrise-sunset)
1.6 - Sunshine duration (hours)
0.8 - Piche tube evaporation (ml)
0.12 - Standard tank evaporation (mm)

1 year ago - Historical data for: 21 January 2018

Air pressure at 0900 GMT
1015.0 - Mean sea level pressure, mb

Air temperature at 0900 GMT
0.6 - Dry bulb temperature, C
0.5 - Wet bulb temperature, C
0 - Dew point temperature, C
6.3 - Vapour pressure, mb
98 - Relative humidity, %

Extremes of air and surface temperatures
11 - Maximum air temperature, C, starting 0900 GMT
0.6 - Minimum air temperature, C, ending 0900 GMT
-1.9 - Grass minimum temperature, C, ending 0900 GMT
-0.1 - Soil minimum temperature, C, ending 0900 GMT
-0.5 - Concrete minimum temperature, C, ending 0900 GMT
5.8 - Daily mean air temperature, C
10.4 - Diurnal air temperature range, degC

Soil temperature at 0900 GMT
1.4 - at 5 cm depth, C
2.1 - at 10 cm depth, C
3.4 - at 20 cm depth, C
5.0 - at 30 cm depth, C
5.6 - at 50 cm depth, C
7.2 - at 100 cm depth, C

Cloud and wind
8 - Cloud cover (eighths) at 0900 GMT; 9=sky obscured
110 - Wind direction (degrees) at 0900 GMT
3 - Wind speed (knots) at 0900 GMT
19 - Maximum wind gust (knots) in 24 hours

Weather details at 0900 GMT
73 - Intermittent snowflakes, heavy

Weather details for the day
Snow (and maybe sleet) fell during 0000-2400 GMT
At least 50 % snow cover at 0900 GMT
No thunder heard during 0000-2400 GMT
No hail observed during 0000-2400 GMT

Visibility at 0900 GMT
1000 m to 1900 m at 0900 GMT
No fog at 0900 GMT

Precipitation in 24 hours beginning 0900 GMT
14.1 - Rainfall (mm)
9.0 - Rainfall duration (hours)

State of the ground at 0900 GMT
1 - Total snow depth (cm) at 0900 GMT
Loose dry snow on ground, cover 50-99 %

Evaporation in 24 hours beginning 0900 GMT, and sunshine (sunrise-sunset)
0.0 - Sunshine duration (hours)
0.5 - Piche tube evaporation (ml)
-0.12 - Standard tank evaporation (mm)

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