------------------------------------------------------- Mean Mean Mean Highest Lowest Highest Lowest Max Min Monthly Monthly Monthly Monthly Max Max Min Min ------------------------------------------------------- Jan | 8.4 2.5 5.5 13.2 2.7 9.3 -3.7 Feb | 9.3 2.4 5.9 14.3 3.6 9.1 -4.0 Mar | 12.0 4.0 8.0 18.1 6.4 10.3 -2.7 Apr | 14.6 5.3 9.9 21.7 8.1 11.1 -1.2 May | 18.5 8.6 13.5 26.5 11.9 14.4 2.6 Jun | 21.2 11.4 16.3 28.5 15.2 16.0 6.2 Jul | 23.3 13.4 18.3 29.7 17.7 17.8 8.8 Aug | 23.2 13.2 18.2 29.9 17.6 17.7 8.1 Sep | 19.6 10.9 15.5 25.3 14.4 15.8 5.1 Oct | 15.3 7.9 11.6 20.4 10.7 13.6 1.0 Nov | 10.9 4.3 7.6 16.0 5.8 11.8 -2.2 Dec | 8.2 2.6 5.4 13.6 1.8 10.2 -4.0 Yr | 15.4 7.2 11.3 31.6 0.9 18.8 -5.7
--------------------------------------------------------------------- ----Mean Maximum----- ----Mean Minimum--- -Warmest- -Coldest- High Year Low Year High Year Low Year Month Month Year Year --------------------------------------------------------------------- Jan | 10.5 2007 5.1 1997 4.9 2007 0.1 1997 7.7 2007 2.6 1997 Feb | 12.1 1998 5.3 1991 4.7 1990 -1.3 1991 8.2 1990 2.0 1991 Mar | 14.4 2003 8.6 1996 5.5 1998 1.9 1995 9.5 1997 5.5 1996 Apr | 19.5 2007 11.7 1989 6.9 2007 3.6 1990 13.2 2007 7.8 1989 May | 20.8 1989 15.0 1996 10.2 2008 5.9 1996 15.2 1992 10.5 1996 Jun | 23.8 2006 17.4 1991 12.5 2007 9.4 1991 18.1 2006 13.4 1991 Jul | 28.0 2006 19.7 1988 16.0 2006 11.6 1988 22.0 2006 15.6 1988 Aug | 26.9 1995 21.1 1992 15.6 1997 11.1 1993 20.9 1995 16.1 1993 | 1993 Sep | 23.0 2006 17.0 1993 14.1 2006 9.3 var 18.5 2006 13.1 1993 Oct | 17.9 1995 12.3 1992 10.7 2006 4.9 1992 14.3 2006 8.6 1992 Nov | 13.2 1994 8.4 1993 8.3 1994 1.3 1988 10.7 1994 5.3 1993 Dec | 10.1 1994 5.4 1995 5.0 2002 0.7 2001 7.4 1998 3.4 1995 Yr | 16.3 2003 14.2 1996 8.1 2006 6.3 1996 12.2 2006 10.3 1996
--------------------------------------------------------------------------------------------- -Highest Maximum---- --Lowest Maximum---- -Highest Minimum---- --Lowest Minimum---- High Year Low Year High Year Low Year High Year Low Year High Year Low Year --------------------------------------------------------------------------------------------- Jan | 16.0 2003 10.9 1997 5.2 1990 -0.6 1997 12.3 2008 5.4 1997 -0.8 2005 -7.1 2002 Feb | 18.5 1990 11.3 1993 7.9 2002 -3.4 1991 12.3 2004 6.4 1996 -0.4 1990 -7.5 1991 Mar | 22.3 1990 14.8 1996 10.0 1997 3.2 1996 12.9 1998 8.7 1995 0.3 1997 -6.1 2006 Apr | 27.3 2003 15.2 1989 10.3 2002 4.0 1989 13.8 2005 8.3 2001 0.8 2004 -3.6 1990 May | 30.2 2005 20.8 1994 14.9 1999 8.9 1994 17.3 1998 11.6 1994 6.1 1999 -0.9 1997 Jun | 33.4 1995 21.6 1991 18.5 2003 12.4 1989 19.5 2005 13.0 1991 8.7 1993 2.7 1991 Jul | 35.1 2006 22.9 1988 21.1 2006 15.3 1988 20.4 2006 14.7 2000 11.6 2006 6.2 1993 Aug | 37.2 2003 25.8 1993 19.5 2004 16.0 1992 20.9 1995 15.4 2007 10.3 2002 5.7 1993 | 2006 1999 Sep | 30.5 2006 21.3 2008 17.1 1997 9.6 1993 18.5 2005 14.5 1990 8.3 2006 1.9 2003 | 2002 Oct | 25.2 1997 17.3 1992 14.1 2006 7.0 2008 16.5 2005 10.5 1992 6.3 2001 -3.8 1997 Nov | 17.6 1994 14.2 1995 9.1 1994 1.2 1993 14.8 1996 9.9 2000 1.9 1994 -6.3 1989 Dec | 15.0 2007 12.6 1990 4.4 1998 -1.5 1991 12.6 2000 7.7 2004 -0.3 1988 -8.4 1991 | 1996 Yr | 37.2 2003 27.4 1993 3.5 1998 -3.4 1991 20.9 1995 16.9 2007 -4.0 1998 -8.4 1991
---------------------------------------------------------------------------------------------- ------------------------------No. of days with ----------------------------------------- Minimum temp.- ------Maximum temp------ -Maximum temp. Maximum temp. Minimum temp. below -5C 25C or more 30C or more below 0C 15C or more Mean High Year Mean High Year Low Year Mean High Year Mean High Year Mean High Year ---------------------------------------------------------------------------------------------- Jan | 0.5 3 1992 0 0 - 0 - 0 0 - 0.3 3 1997 0 0 - Feb | 0.5 6 1991 0 0 - 0 - 0 0 - 0.2 3 1991 0 0 - Mar | 0.1 1 2001 0 0 - 0 - 0 0 - 0 0 - 0 0 - Apr | 0 0 - 0.1 1 2003 0 - 0 0 - 0 0 - 0 0 - | 2007 May | 0 0 - 2.9 9 1992 0 - 0.1 1 2005 0 0 - 0.4 2 1992 Jun | 0 0 - 4.7 11 2006 0 - 0.5 2 var 0 0 - 2.5 6 2005 Jul | 0 0 - 9.7 21 2006 0 - 1.8 12 2006 0 0 - 8.6 19 2006 Aug | 0 0 - 8.2 22 1995 1 1.5 10 1995 0 0 - 8.4 18 1995 Sep | 0 0 - 2.0 7 2003 0 - 0 1 2006 0 0 - 2.6 14 2006 | 2006 Oct | 0 0 - 0 1 1997 0 - 0 0 - 0 0 - 0.3 2 1995 Nov | 0.1 1 1988 0 0 - 0 - 0 0 - 0 0 - 0 0 - | 1999 Dec | 0.6 4 1991 0 0 - 0 - 0 0 - 0.2 2 1991 0 0 - Yr | 1.6 10 1991 28.4 49.0 1989 6.0 1988 4.1 17 1995 0.6 5 1991 22.6 46 2006
----------------------------------------------------------------------------- -----------Monthly mean------------ -----------Monthly minimum--------- Average --Highest-- ---Lowest---- Average --Highest-- ---Lowest---- Year Year Year Year ----------------------------------------------------------------------------- Jan | -0.4 1.8 1996 -2.5 2001 -7.1 -4.3 2008 -9.5 1992 | 2007 2003 Feb | -0.6 2.1 1995 -3.3 1991 -7.5 -4.0 1990 -13.9 1991 Mar | 1.0 2.8 1998 -0.9 2003 -6.1 -2.7 1997 -10.2 1989 | 2004 Apr | 2.4 4.4 1993 -0.1 1990 -3.9 -0.8 2007 -7.2 1990 May | 6.4 8.3 2008 3.7 1996 0.1 3.9 1999 -3.9 1997 Jun | 9.4 11.1 2007 7.7 1990 3.9 7.0 1993 0.8 1991 Jul | 11.3 13.5 2006 9.8 1988 6.5 9.1 1994 3.8 1990 | 1990 Aug | 11.1 13.7 1997 8.9 1993 5.9 8.6 2002 3.3 1993 Sep | 8.5 11.6 2006 5.1 2003 2.8 6.2 2006 -1.5 2003 Oct | 5.4 8.2 2001 1.0 2003 -1.4 2.6 2001 -6.9 1997 Nov | 1.7 6.0 1994 -0.8 1988 -5.0 -1.0 1994 -10.4 1989 Dec | 0.1 2.8 1988 -2.4 2005 -7.2 -3.9 1988 -10.4 2000 | 2002 Yr | 4.7 5.8 2006 3.0 2003 -9.0 -7.2 1990 -13.9 1991
---------------------------------------- Mean Mean Max Average number of days with a fall Fall Daily 0.2 1.0 5.0 Fall mm mm to or or 9.9 mm mm more more mm --------------------------------------- Jan | 60.8 12.0 16.3 11.7 4.4 Feb | 48.4 9.7 13.1 10.3 3.4 Mar | 42.5 10.1 13.3 9.3 3.7 Apr | 52.0 13.5 13.5 10.0 3.4 May | 48.3 13.6 11.6 8.5 3.5 Jun | 46.3 13.9 11.1 8.4 3.1 Jul | 47.9 15.6 11.4 8.1 2.9 Aug | 54.7 17.0 11.2 8.2 3.4 Sep | 56.2 17.8 12.3 8.3 3.5 Oct | 71.7 19.2 14.0 11.1 5.0 Nov | 70.3 16.3 14.8 11.0 5.1 Dec | 63.6 14.1 14.6 10.7 4.8 Yr | 666.8 35.7 157.5 116.2 46.3
------------------------------------------------------------- Wettest Month Driest Month- Wettest 24 hrs in a month mm Year mm Year -Greatest-- ---Least-- mm Year mm Year ------------------------------------------------------------- Jan | 127.4 1995 12.8 1997 21.4 2001 3.7 1992 Feb | 105.7 1990 3.5 1993 16.8 1995 1.8 1993 Mar | 100.1 2001 10.0 1990 18.2 2005 4.5 1999 Apr | 120.7 2000 2.0 2007 32.1 1991 1.1 2007 May | 97.0 2007 2.1 1990 35.7 2007 1.5 1990 Jun | 113.3 2007 10.2 2006 30.5 1999 3.3 2006 Jul | 142.6 2007 5.3 1994 70.2 2007 2.2 1994 Aug | 135.7 2001 1.0 1995 48.8 1999 0.6 1995 Sep | 124.0 1995 3.2 1997 59.0 1992 1.3 1997 Oct | 157.5 2000 29.6 1991 49.8 2000 7.6 1995 Nov | 166.2 2002 20.5 1988 35.0 2003 5.1 2004 Dec | 148.2 1989 10.5 1988 35.9 1989 5.6 1991 Yr | 893.6 2000 492.5 1990 70.2 2007 20.2 1990
------------------------------------------------------------------------ ---no. of days with-- ---no. of days with-- ---no. of days with-- ----0.2mm or more---- ----1.0mm or more---- ----5.0mm or more---- Most Year Least Year Most Year Least Year Most Year Least Year ------------------------------------------------------------------------ Jan | 26 1993 7 1997 18 var 4 2000 9 1995 0 var | 2006 1999 Feb | 20 1995 3 1993 19 1995 2 1993 9 1990 0 var Mar | 24 1992 3 1993 17 2004 2 2003 12 2004 0 1999 Apr | 24 1998 3 1997 20 2000 1 2007 9 1998 0 1995 | 2007 2007 May | 18 2006 3 1990 15 2006 1 1990 8 2002 0 1990 | 2007 2007 1991 Jun | 21 1998 4 1995 18 1998 2 1996 8 1998 0 2006 | 1996 2007 Jul | 19 1988 5 1990 16 1998 2 1994 6 1988 0 1994 | 1999 Aug | 21 2008 2 1995 18 2008 0 1995 8 1992 0 1994 | 1995 Sep | 19 1998 3 1997 14 1995 1 1997 8 1995 0 1997 | 1999 1999 Oct | 21 2000 8 var 18 2004 6 var 10 2000 2 var | 2001 Nov | 24 2002 9 var 24 2002 5 1988 15 2002 1 var Dec | 25 1999 8 1991 19 1993 2 1988 10 1989 1 var Yr |181 2002 128 2003 143 2002 88 1996 63 1998 31 1990 | 2002
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 4.3 6.3 2007 1.3 1997 10.0 2008 -2.5 2002 Feb | 4.3 6.1 2002 1.9 1991 10.3 2004 -0.3 1991 | 1996 Mar | 6.0 7.2 1997 3.9 1996 11.6 1998 0.6 2001 | 2006 Apr | 8.1 10.1 2007 6.4 1989 13.8 2007 1.5 1996 May | 12.0 13.2 1998 9.2 1996 18.6 1989 5.4 1991 Jun | 15.2 16.7 2003 12.5 1991 20.2 2005 8.9 1989 Jul | 16.7 19.2 2006 14.1 1988 23.3 2006 11.9 1988 | 1990 Aug | 16.4 19.2 1995 14.7 1993 22.7 1995 11.4 1989 Sep | 13.7 16.3 2006 12.4 1993 19.7 2005 7.6 1988 Oct | 10.4 13.0 2006 7.9 1992 15.6 2006 1.6 1997 Nov | 6.9 9.8 1994 4.3 1988 13.5 1996 0.4 1988 Dec | 4.8 6.6 2006 3.2 1996 13.9 2001 -1.0 1995 Yr | 9.9 10.7 2006 8.8 1996 23.3 2006 -2.5 2002
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 4.2 6.4 2007 1.1 1997 10.0 2007 -2.0 2002 Feb | 4.3 6.1 2002 1.9 1991 9.9 2004 -0.1 1991 | 1996 Mar | 6.0 7.4 1997 3.9 1996 11.4 1998 0.3 1995 Apr | 8.3 10.5 2007 6.9 1989 14.1 2007 2.1 1996 May | 12.2 13.5 1998 9.4 1996 18.4 1989 5.9 1991 Jun | 15.4 17.0 2003 12.6 1991 20.5 2005 9.9 1991 Jul | 17.1 19.7 2006 14.6 1988 22.9 2006 12.1 1990 Aug | 17.0 19.9 1995 15.3 1993 22.9 1995 12.5 1993 Sep | 14.2 16.8 2006 12.8 1993 19.9 2005 8.8 1995 Oct | 10.8 13.4 2006 8.3 1992 15.8 2006 2.4 1997 Nov | 7.0 10.0 1994 4.6 1988 13.4 2005 0.6 1988 Dec | 4.8 6.7 2006 3.1 1996 11.1 2001 -0.6 1995 Yr | 10.1 10.8 2006 9.1 1996 22.9 1995 -2.0 2002 | 2006
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 5.0 7.0 2007 2.0 1997 9.9 2007 0.2 1997 Feb | 5.2 7.0 2002 2.7 1991 9.6 2004 0.8 1991 Mar | 7.0 8.4 1997 5.0 1996 11.1 1998 2.2 2001 | 2006 Apr | 9.4 11.7 2007 8.2 1989 14.1 2007 4.1 1996 May | 13.2 14.6 1989 10.7 1996 18.9 1989 7.4 1991 Jun | 16.3 18.0 2003 13.3 1991 21.0 2005 11.0 2006 Jul | 18.1 20.5 2006 15.3 1988 23.8 1989 14.0 1990 Aug | 18.1 21.4 1995 16.4 1988 23.6 1995 14.0 1993 Sep | 15.4 17.4 2006 13.9 1993 19.4 2005 11.1 1993 Oct | 11.8 14.3 2006 9.7 1992 16.5 2006 4.8 2008 Nov | 8.0 10.6 1994 6.0 1988 13.7 2005 2.5 1993 Dec | 5.7 7.3 2006 4.0 1996 13.1 1996 1.0 1995 Yr | 11.1 11.7 2006 10.2 1996 23.8 1989 0.2 1997
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 5.7 7.6 2007 2.7 1997 9.4 2007 1.5 1997 Feb | 5.8 7.6 2002 3.1 1991 9.1 2004 1.5 1991 Mar | 7.4 8.6 1997 5.5 2006 10.3 1998 3.2 2005 Apr | 9.7 11.6 2007 8.7 1994 14.0 2007 5.6 1996 | 2000 May | 13.2 14.4 1998 10.8 1991 17.5 1998 8.1 1991 Jun | 16.2 17.8 2003 13.1 1991 20.4 2005 11.8 1991 Jul | 18.0 20.2 2006 15.5 1988 22.2 2006 14.7 1988 | 1997 Aug | 18.4 21.6 1995 17.0 1993 22.9 1995 15.3 1988 Sep | 16.0 17.8 2006 14.5 1993 19.4 2005 12.2 1993 Oct | 12.6 14.9 2006 10.8 1993 16.9 2006 7.3 1997 Nov | 8.9 11.0 1994 7.3 1988 14.0 2005 4.3 1993 Dec | 6.5 8.0 2006 4.9 1996 10.2 2006 2.5 1995 Yr | 11.5 12.1 1995 10.6 1991 22.9 1995 1.5 1991 | 2006 1997
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 5.8 7.8 2007 2.8 1997 9.2 2007 1.7 1997 Feb | 5.7 7.4 2002 3.2 1991 8.4 2002 1.9 1991 Mar | 7.1 8.2 1997 5.3 1996 9.6 1990 3.7 2001 | 2006 Apr | 9.2 10.9 2007 8.1 1996 12.8 2007 5.5 1996 May | 12.4 13.5 2007 10.2 1991 16.0 2001 8.1 1991 Jun | 15.4 16.7 2003 12.5 1991 18.9 2005 11.4 1991 Jul | 17.3 19.4 2006 15.3 1988 21.3 2006 14.2 1991 Aug | 18.0 21.1 1995 16.5 1988 22.0 1995 15.2 1988 Sep | 16.0 17.8 2006 14.5 1993 19.2 1995 12.3 1993 Oct | 12.9 15.0 2006 11.0 1993 16.9 2006 8.4 1992 Nov | 9.3 11.0 1994 7.7 1993 14.0 2005 5.0 1993 Dec | 6.8 8.3 2006 5.3 1996 10.3 1994 3.2 1995 | 1996 Yr | 11.3 11.9 2005 10.4 1991 22.0 1995 1.7 1997 | 2006 1996
---------------------------------------------------------------------- ---Monthly mean temperatures------- -Extremes of 0700GMT value- Average -Warmest-- -Coldest--- -----Maximum -----Minimum Year Year deg C Year deg C Year ---------------------------------------------------------------------- Jan | 7.0 8.7 2007 4.5 1997 9.2 2007 3.9 1997 Feb | 6.6 7.9 2002 4.8 1991 8.4 2002 4.0 1991 Mar | 7.4 8.6 2007 5.8 1996 9.2 1990 5.2 2001 Apr | 9.0 10.3 2007 7.7 1996 12.0 2007 6.3 1996 May | 11.5 12.9 2007 9.8 1991 14.1 1992 8.5 1989 | 1991 Jun | 14.0 15.0 2003 11.9 1991 16.4 2003 11.2 1991 Jul | 16.0 17.4 2006 14.6 1988 19.1 2006 13.0 1991 Aug | 17.1 19.1 1995 15.7 1988 19.7 1995 14.8 1988 Sep | 15.9 17.1 2006 14.7 1993 18.5 1995 13.4 1993 Oct | 13.7 15.5 2006 12.1 1993 16.9 2006 10.3 1992 Nov | 10.7 11.9 2005 9.3 1993 14.4 2006 7.1 1993 | 2006 Dec | 8.3 9.7 2006 7.0 1996 11.3 1994 5.4 1996 Yr | 11.4 12.0 2007 10.6 1996 19.7 1995 3.9 1997
----------------------------------------------------------------------------------------- -Snow falling- --Snow lying-- Hail/Ice Pellets ------Hail----- -Ice Pellets-- Mean Highest- Mean Highest- Mean Highest--- Mean Highest-- Mean Highest- Year Year Year Year Year ----------------------------------------------------------------------------------------- Jan | 1.7 4 var 0.3 2 2003 0.4 2 1998 0.2 1 var 0.2 1 var Feb | 2.9 8 var 1.2 9 1991 0.6 3 2002 0.3 1 var 0.4 3 2002 Mar | 1.8 5 var 0.2 1 var 1.2 7 1995 0.4 3 1995 0.9 4 1995 | 2004 Apr | 0.8 4 2000 0.1 1 2008 1.3 4 var 0.5 3 1991 0.7 3 var May | 0.1 1 1997 0 0 - 0.6 2 var 0.4 2 1997 0.2 1 var Jun | 0 0 - 0 0 - 0.1 1 1991 0.1 1 1991 0 0 - Jul | 0 0 - 0 0 - 0.1 1 1996 0 1 2007 0 1 1996 | 2007 Aug | 0 0 - 0 0 - 0.1 1 var 0 1 2005 0.1 1 1991 | 1996 Sep | 0 0 - 0 0 - 0.2 1 var 0.1 1 1995 0.1 1 1990 | 1993 | 1998 Oct | 0.1 2 2008 0 0 - 0.1 2 1992 0 0 - 0.1 2 1992 Nov | 0.4 3 1993 0 0 - 0.3 1 var 0.1 1 1997 0.2 1 var | 2001 Dec | 1.7 6 1995 0.5 4 2000 0.5 2 1989 0.1 1 var 0.4 1 var | 1994 Yr | 9.5 21 1996 2.2 9 1991 5.5 14 1995 2.2 5 1991 3.3 9 1995 | 1995Snow lying: defined as a ground cover of 50 per cent or more at 0900GMT
Hail only: defined as hail of diameter 5mm or more
Ice pellets only: includes snow pellets and hail of diameter less than 5mm
------------------------------------------------------ ----Thunder--- Fog at 09h GMT -----Gale------ Mean Highest- Mean Highest- Mean Highest-- Year Year Year ------------------------------------------------------ Jan | 0.4 2 1995 1.7 5 1997 0.2 1 var Feb | 0.4 2 1995 1.7 5 var 0.2 4 1990 Mar | 0.4 2 1995 0.5 4 1997 0.1 1 1995 Apr | 1.4 7 1998 0.1 1 1990 0 0 - May | 1.8 5 2001 0 0 - 0 0 - Jun | 1.7 4 2003 0 0 - 0 0 - | 2007 Jul | 2.0 5 1995 0 0 - 0 0 - | 2007 Aug | 2.2 6 2004 0 1 2008 0 0 - Sep | 1.4 4 var 0.2 1 var 0 0 - Oct | 0.7 3 1993 0.6 2 var 0.1 2 1989 | 2001 Nov | 0.3 2 2006 1.7 7 2002 0 0 - Dec | 0.2 3 1989 1.7 4 1991 0.1 2 1993 | 2006 Yr | 13.0 18 var 8.1 15 1997 0.6 5 1990Fog at 09GMT: defined as visibility below 1000 metres.
Gale: a wind speed averaging 34 knots for at least 10 minutes.
-------------------------------------------------------------------- -----------Air frost---------- --------Ground frost---------- Mean Most days Least days Mean Most days Least days no in a month in a month no in a month in a month of Year Year of Year Year days days -------------------------------------------------------------------- Jan | 7.7 17 1997 2 2008 17.2 24 1997 8 1996 Feb | 8.0 18 1991 1 1990 16.3 23 1991 6 1995 | 1996 1996 Mar | 4.3 12 1995 0 1997 13.4 19 2003 7 1992 Apr | 2.0 6 2008 0 var 7.4 16 1990 1 2007 May | 0.1 1 1997 0 var 1.0 8 1996 0 var Jun | 0 0 - 0 - 0 0 - 0 - Jul | 0 0 - 0 - 0 0 - 0 - Aug | 0 0 - 0 - 0 0 - 0 - Sep | 0 0 - 0 - 0.1 3 2003 0 - Oct | 1.0 5 1997 0 var 3.3 11 1992 0 var | 2003 Nov | 4.7 13 1988 0 1994 10.6 19 1988 2 1994 | 2002 Dec | 8.6 18 2001 1 2002 16.3 26 2005 5 2002 Yr | 36.1 57 1996 15 2002 85.4 120 2003 59 2002
Days with snow falling - most: 21 1995-1996 least: 2 1989-1990 2 1991-1992 Date of first winter snow - earliest: 28 Oct 2008 average: 17 December latest: 18 Feb 1991 Date of last winter snow - earliest: 14 Feb 1991 average: 26 March latest: 6 May 1997 Mornings (09GMT) with 50 per cent snow cover - most: 10 1990-1991 least: 0 various Days with air frost - most: 52 1995-1996 52 2005-2006 least: 20 1989-1990 Date of first winter air frost - earliest: 16 Oct 1992 16 Oct 1993 average: 8 November latest: 16 Dec 1994 Date of last winter air frost - earliest: 22 Mar 2007 average: 10 April latest: 7 May 1997 Days with ground frost - most: 109 2003-2004 least: 61 2006-2007 Date of first winter ground frost - earliest: 24 Sep 2003 average: 20 October latest: 13 Nov 2004 Date of last winter ground frost - earliest: 5 Apr 2007 average: 26 April latest: 20 May 1996
---------------------------------------------------------------- Monthly Mean --Average number of days with sunshine-- mean maximum (hours) in the range sun duration 0 12.1 hr/day hrs or more ---------------------------------------------------------------- Jan | 1.90 6.7 11.6 0 Feb | 2.87 8.4 7.6 0 Mar | 3.69 10.4 6.1 0 Apr | 5.23 11.9 3.2 1.1 May | 6.42 14.0 2.7 4.7 Jun | 6.42 14.2 1.6 4.5 Jul | 6.45 14.1 1.2 4.5 Aug | 6.41 12.8 1.0 2.9 Sep | 4.69 10.9 2.5 0 Oct | 3.47 9.3 5.7 0 Nov | 2.27 7.6 9.3 0 Dec | 1.63 6.2 13.1 0 Yr | 4.30 14.8 65.6 17.8
----------------------------------------------------------------------------------------------- Sunniest Dullest --Greatest total in-- No. of sunless days- --No. of days with-- month month 24 hours 12.1h sunshine hr/day hr/day -Highest- --Lowest- -Highest- --Lowest- -Highest- --Lowest- Year Year hrs Year hrs Year days Year days Year days Year days Year ----------------------------------------------------------------------------------------------- Jan | 2.93 2003 0.63 1996 7.8 2004 3.3 1996 18 1996 6 2003 0 - 0 - | 2008 Feb | 5.02 2008 1.74 1991 9.5 1996 6.9 1997 13 1993 3 1998 0 - 0 - | 2001 Mar | 5.90 2007 1.80 1992 11.7 2007 7.5 1992 13 1996 1 1995 0 - 0 - Apr | 8.17 2007 2.87 1998 13.7 2007 9.2 1995 6 2000 0 1990 7 2007 0 var May | 9.86 1989 3.91 1991 14.9 var 11.6 2000 8 1994 0 var 15 1989 0 2000 Jun | 8.43 2006 4.15 1990 15.5 1993 10.8 1998 3 var 0 var 9 1996 0 var Jul | 9.55 2006 4.41 1992 15.3 1990 11.5 1998 4 1992 0 var 13 2006 0 1998 Aug | 8.66 1995 3.87 2008 14.4 1998 10.5 1994 3 var 0 var 9 2007 0 var Sep | 6.36 2003 2.68 1993 12.3 1988 8.2 1995 7 1994 0 var 1 1988 0 var Oct | 5.10 1997 2.39 1991 10.1 1988 8.1 1989 12 1991 2 2003 0 - 0 - Nov | 3.43 2006 1.17 1994 9.2 2006 6.3 2004 17 1994 4 2007 0 - 0 - Dec | 2.72 2001 0.85 1989 7.1 1997 4.4 1989 19 1995 3 2005 0 - 0 - Yr | 5.22 2003 3.63 1992 15.5 1993 13.4 1991 81 1994 50 1990 38 1989 6 1991 | 2005 2000
---------------------------------------- ----Monthly mean wind speed-------- Average -Windiest-- -Calmest--- Year Year ---------------------------------------- Jan | 5.8 8.5 1990 3.4 1997 Feb | 5.3 10.9 1990 2.5 1998 Mar | 5.2 7.2 1989 3.3 1999 Apr | 4.9 7.7 1991 2.8 1996 May | 5.3 7.6 1991 3.4 2004 Jun | 5.0 7.2 1990 3.2 2007 | 1991 Jul | 4.9 7.9 1988 3.0 1997 Aug | 4.2 6.6 1992 2.9 1997 Sep | 3.9 7.1 1989 2.1 2002 Oct | 4.7 7.2 1990 2.6 1994 Nov | 4.6 7.3 1990 2.2 1998 Dec | 5.2 7.0 1990 3.8 2008 Yr | 4.9 6.7 1990 4.0 1997
---------------------------------------- ----Monthly mean cloud cover------- Average -Cloudiest- -Clearest- Year Year ---------------------------------------- Jan | 6.0 7.4 1997 5.2 2001 Feb | 5.8 6.8 2005 4.8 2008 Mar | 5.7 6.9 1996 3.7 1997 Apr | 5.5 6.8 1993 3.6 1990 | 1998 May | 5.3 6.3 2002 3.3 1989 Jun | 5.5 7.0 1995 4.5 1989 | 1996 Jul | 5.5 6.5 1992 3.8 1990 Aug | 5.1 6.2 2002 3.5 1989 Sep | 5.6 6.5 var 4.6 2003 Oct | 5.5 6.7 2005 4.5 1999 Nov | 5.7 6.7 1994 4.1 1989 Dec | 6.0 7.8 1989 4.6 1999 Yr | 5.6 6.1 1991 4.8 1990
------------------------------------------------------- ---Monthly total evaporation------ -Greatest--- Average -Highest--- -Lowest-- -Daily value Year Year ml Year ------------------------------------------------------- Jan | 24.8 32.6 2007 15.0 1997 2.6 2008 Feb | 30.5 57.9 2000 18.7 1993 3.1 2002 Mar | 43.5 54.6 2003 31.0 2001 3.4 2003 Apr | 55.2 76.8 2003 40.1 2000 5.6 2003 May | 66.4 79.7 1995 53.9 2000 5.5 1997 | 2007 Jun | 71.1 91.2 1996 50.9 1998 6.6 1997 Jul | 76.4 110.9 2006 59.2 2000 7.2 2006 Aug | 72.3 136.2 1995 48.8 2008 7.5 1995 Sep | 48.8 66.0 2003 34.8 2000 4.6 2003 Oct | 35.2 46.2 2003 27.5 2007 3.1 1992 Nov | 22.5 32.0 1999 17.4 1997 2.6 2003 Dec | 21.4 27.4 1993 11.1 1995 2.7 1993 Yr |569.0 677.3 2003 515.6 2001 7.5 1995
---------------------------------------- -Monthly mean relative humidity--- Average - Highest-- --Lowest-- Year Year ---------------------------------------- Jan | 90.0 93 1994 86 1991 | 1996 2008 Feb | 88.4 93 2007 84 1990 | 2002 Mar | 84.4 90 1992 78 2008 Apr | 77.4 86 1998 71 2002 | 2003 May | 73.3 82 2003 66 1996 Jun | 71.8 81 1998 62 2001 Jul | 72.3 80 1991 63 1990 | 1992 Aug | 74.7 82 1992 64 1995 Sep | 81.7 89 1993 74 1989 Oct | 88.0 92 2005 80 1990 Nov | 91.3 95 1994 86 1999 Dec | 91.2 94 1992 88 var | 1994 Yr | 81.9 84 var 77 1990
------------------------------------------------------------------------------ ---Monthly total rain duration---- ---Monthly total frost duration--- Average -Highest--- -Lowest-- Average -Highest--- -Lowest-- Year Year Year Year ------------------------------------------------------------------------------ Jan | 58.5 102.0 1995 19.8 1997 57.3 193.8 1997 4.2 2008 Feb | 48.8 81.5 2007 6.4 1998 56.8 232.0 1991 1.9 1990 Mar | 46.2 87.5 2001 10.2 1990 17.3 47.2 2006 0 1997 Apr | 45.5 104.3 2000 2.7 2007 6.7 23.2 2003 0 var May | 36.6 82.1 2007 2.3 1990 0.1 2.0 1997 0 var Jun | 31.4 70.3 1991 4.1 1996 0 0 - 0 - Jul | 30.2 59.5 1988 6.3 1999 0 0 - 0 - Aug | 31.7 73.8 2008 3.3 1995 0 0 - 0 - Sep | 38.1 79.9 1998 8.5 1997 0 0 - 0 - Oct | 51.6 90.0 1998 24.2 2007 5.1 37.7 1997 0 var Nov | 59.4 109.5 2002 25.7 1989 25.5 102.1 1993 0 var Dec | 55.5 91.1 2002 13.0 1991 63.2 160.7 1991 0.4 1988 Yr |536.3 651.3 1998 413.1 1990 232.2 471.3 1991 98.2 2002
1989 12 Nov - 7 Dec 26 days trace 1990 7 Jul - 28 Jul 22 days trace 1995 28 Jul - 22 Aug 26 days trace 1997 26 Mar - 17 Apr 23 days trace 2002 21 Mar - 16 Apr 27 days trace 2003 9 Mar - 31 Mar 23 days trace 2007 31 Mar - 21 Apr 22 days trace
2006 18 Dec - 27 Dec 10 days
1991 1 Feb - 16 Feb 16 days 1991 6 Dec - 16 Dec 11 days 1996 24 Dec - 5 Jan 13 days
1991 2 Feb - 9 Feb 3 days 1996 25 Jan - 26 Jan 2 days 1997 7 Jan - 8 Jan 2 days
1989 15 Jul - 29 Jul 15 days 1995 28 Jul - 6 Aug 10 days 1995 9 Aug - 22 Aug 14 days 1997 6 Aug - 16 Aug 11 days 2003 2 Aug - 14 Aug 13 days 2004 28 Jul - 8 Aug 12 days 2006 15 Jul - 30 Jul 16 days
1990 27 Apr - 6 May 10 days 128.7hrs 1997 24 May - 2 Jun 10 days 132.9hrs
1991 SL 8 Feb 9cm snow lying 1991 SL 9 Feb 7cm snow lying 1991 SL 10 Feb 7cm snow lying 2007 SL 8 Feb 9cm snow lyingSL - snow lying to a depth of more than 5cm at 09GMT
1989 11 Dec - 20 Dec 10 days 129.8mm 1997 18 Jun - 28 Jun 11 days 55.4mm 1997/8 28 Dec - 7 Jan 10 days 58.3mm 1998 1 Apr - 10 Apr 10 days 60.3mm 2000 10 Apr - 21 Apr 12 days 56.0mm 2002 5 Nov - 17 Nov 13 days 98.2mm
10 Aug 2003 37.2 3 Aug 1990 35.3 19 Jul 2006 35.1 6 Aug 2003 35.0
7 Feb 1991 -3.4
None
21 Jun 1988 20.9 2 Aug 1995 20.4 9 Aug 2004 20.4 22 Jul 2006 20.0
19 Jul 2007 70.2 22 Sep 1992 59.0
27 Jun 1993 15.5
© 2009 Roger Brugge