YEAR 2018                    
      January February March April May June July August September October November December Annual
Mean Maximum     8.1 5.7 8.4 13.4 19.3 21.8 26.1 21.9 18.7 14.6 11.0 9.3 14.9
Mean Minimum     2.3 -0.3 1.5 6.6 8.4 11.5 14.0 12.5 9.9 7.0 5.2 4.3 6.9
Average tempaerature temperature   5.2 2.7 5.0 10.0 13.9 16.7 20.1 17.2 14.3 10.8 8.1 6.8 10.9
Compared to 30yr average     0.8 -1.8 -1.8 1.1 1.8 1.6 2.8 0.2 -0.1 0.1 1.0 2.2 0.7
Highest maximum     13.9 10.5 13.5 25.9 26.2 27.8 32.1 28.3 24.9 23.1 14.8 13.6 32.1
date     28th 19th 16th 19th 7th 25th 26th 5th 2nd 10th 6th 2nd  
Lowest minimum     -2.5 -6.4 -7.3 1.5 0.8 7.7 11.2 7.2 1.5 -2.7 -2.4 -1.4 -7.3
date     6th 28th 1st 2nd 1st 6th 4th 11th 25th 31st 22nd 14th  
Lowest maximum     1.8 -1.6 -2.2 6.4 12.4 16.8 19.8 16.8 12.0 5.2 4.4 3.8 -2.2
date     20th 28th 1st 1st 2nd 5th 28th 10th 22nd 27th 22nd 14th  
Highest minimum     9.1 5.3 6.4 13.0 13.5 16.0 17.7 16.7 15.4 14.7 11.1 9.3 17.7
date     29th 20th 16th 22nd 31st 2nd 9th 19th 11th, 17th 13th 7th 3rd  
Lowest grass minimum     -2.5 -8.7 -9.2 -0.3 -2.5 4.0 7.5 2.9 -1.0 -6.8 -6.1 -4.7 -9.2
date     6th 28th 1st 5th 1st 6th 18th 11th 25th 31st 22nd 14th  
                               
Total rainfall     66.4 30.0 113.6 72.0 65.4 7.8 35.2 56.2 40.2 43.4 50.4 80.8 661.4
Percentage of average     111 68 240 138 117 13 60 89 68 64 81 131 98.3
wettest day     12.2 9.0 19.6 17.4 25.0 5.4 13.8 10.6 12.0 11.6 15.4 12.0 25.0
date     21st 8th 30th 1st 24th 7th 29th 26th 19th 14th 27th 18th  
number of rain days     23 17 26 19 11 5 3 11 12 14 19 20 180
number of wet days     14 7 20 12 8 1 3 8 7 8 9 14 111
number of very wet days     5 2 9 5 4 1 3 6 3 3 4 7 52
Driest spell (days)     4 4 2 3 11 10 37 7 7 5 3 5  
                               
Total sunshine     67.3 110.1 92.2 111.7 252.1 254.0 265.4 168.6 146.2 119.4 63.7 57.5 1708.2
Percentage of average     106 140 81 73 132 136 132 91 106 113 96 103 109.1
Sunniest day     6.7 9.3 9.4 12.3 14.1 14.9 14.8 11.8 11.0 9.4 7.5 5.2 14.9
Date     7th 25th 25th 19th 14th 22nd 3rd 6th 1st 9th 2nd 17th 19th 24th  
Dull days     7 3 5 6 2 0 0 1 1 3 7 9 44
Longest period of dull days     2 1 3 4 1 0 0 1 1 1 2 3 4
                               
Fog     0 0 2 0 0 0 0 0 0 0 0 0 2
Gales     1 0 0 0 0 0 0 0 0 0 0 0 1
Thunder     1 0 0 1 1 0 1 1 0 0 1 0 6
Snowfall     5 9 6 0 0 0 0 0 0 0 0 0 20
Snow lying     1 1 6 0 0 0 0 0 0 0 0 0 8
Air frost     4 14 12 0 0 0 0 0 0 2 3 3 38
Grass frosts     13 20 18 1 3 0 0 0 3 8 7 12 85
Concrete frosts     11 19 14 0 0 0 0 0 0 3 3 7 57
Hail     1 2 0 0 0 0 0 0 0 0 0 0 3
Ice pellets     2 1 2 1 0 0 0 0 0 1 1 0 8
                               
Ave RH% 0900hr     91 88 89 83 73 74 64 77 79 88 94 94 82.8
Ave wind speed (mph)     7.8 7.6 8.2 7.2 6.2 6.4 5.7 5.3 6.0 6.6 7.4 6.4 6.7
Compared to ave wind speed     0.3 -0.5 0.2 -0.2 -1.0 -0.2 -0.7 -0.8 -0.1 -0.1 0.8 -0.9 -0.3
Maximum gust (mph)     56 40 38 31 30 33 34 28 45 37 44 37 56
Date     18th 10th 2nd 17th 2nd 14th 28th 27th 19th 12th 29th 8th  
Predominant wind direction     W E,S E,SE,W N NE S W NE E W SW W,SW S S W  
Windiest day (mph)     14.6 11.3 17.2 11.5 10.3 9.8 9.9 7.7 11.7 12.2 11.2 14.5  
Date     18th 20th 2nd 30th 2nd 30th 2nd 15th 21st 13th 29th 8th  
                               
MSLP (mb)      1009.8 1017.5 1002.1 1010.9 1017.8 1019.1 1016.5 1016.5 1020.8 1018.8 1011.7 1015.7 1014.8
Pressure anomaly     -4.4 3.7 -13.5 -3.1 2.5 3.1 1.2 1.1 4.9 5.1 -1.1 1.1 0.0
Highest SLP (mb)     1031 1033 1033 1027 1028 1031 1027 1025 1039 1039 1030 1036 1039
Date     29th 30th 26th 20th, 21st 18th 16th 17th 22nd 8th, 9th 4th 5th 31st 24th,25th 12th 18th 30th 31st  
Lowest SLP (mb)     986 994 984 990 999 1005 999 1001 993 997 990 993  
Date     3rd 10th 5th, 6th 4th 2nd 14th 29th 26th 20th,21st 30th 9th 10th 2nd 0