Weather Extremes 1971 - 2007 Temperatures Lowest Monthly Means -0.4 Feb 86   Highest Monthly Mean 19.3 Jul 06   Highest Max 33.4 03/08/90   Lowest max -6.6 12/01/87   Lowest min -16.3 28/01/79   Lowest grass minimum -17.1 28/01/79   Highest Min 18.7 05/08/94 10/08/04 Highest No. Air frosts 70 1985   Lowest No. Air frosts 19 1990   Warmest year ( mean temp) 10.8 1990 2002 Coldest year (mean temp) 8.9 1979   Rainfall Highest 24hr rainfall 65.5 12/10/93   Highest monthly rainfall 163.2 Aug-04   Lowest monthly rainfall 0.3 Apr 07   Highest years rainfall 896 2001   Lowest years rainfall 460 1972   Highest days snow lying 36 1979   Lowest days snow lying 0 1992