| Pitsford Hall weather station | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Temperatures | ||||||||||||
| Mean Max (C) | 6.2 | 7.9 | 8.6 | 12.4 | 18.1 | 20.1 | 22.4 | 22.4 | 17 | 16.9 | 10.6 | 5.9 |
| Highest Max (C)(& date) | 11.2 (23) | 12.7 (11) | 15.9 (31) | 18.2 (2) | 25 (11,12) | 29.1 (26) | 29.3 (4) | 30.1 (15) | 22.7 (28) | 21.3 (12) | 15 (30) | 10.7 (1) |
| Lowest Max (C)(& date) | 1.6 (16) | 2.4 (28) | 1.6 (2) | 8.6 (13,18) | 11.2 (17) | 14.9 (2) | 16.4 (18,19) | 16.7 (9) | 12.9 (19) | 12.2 (31) | 5.2 (8) | 1.8 (29) |
| Mean Min (C) | -0.2 | 0.9 | 0.9 | 3.5 | 7.3 | 9.4 | 12.8 | 12.6 | 9 | 10 | 3.2 | 0.3 |
| Highest Min (C)(& date) | 7.2 (2) | 6.3 (7) | 7.9 (10) | 7.4 (28) | 14.5 (28) | 15.8 (27) | 18.8 (29) | 17.3 (15) | 14.9 (2) | 13.5 (15) | 10.6 (30) | 8.6 (1) |
| Lowest Min (C)(& date) | -4.5 (16) | -4.2 (25) | -8.2 (18) | -0.9 (19) | 1.2 (5) | 3.6 (3) | 6.7 (15) | 8.1 (28) | 5.6 (22) | 6.7 (29) | -2.2 (10) | -4.7 (31) |
| Mean Temp (C) | 3 | 5.9 | 4.8 | 8 | 12.7 | 14.8 | 17.6 | 17.5 | 13 | 13.5 | 6.9 | 3.1 |
| Days with Air Frost | 18 | 14 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 14 |
| Air Frost Duration (hrs) | 156 | 41 | 65 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 32 | 169 |
| RH (%) | 94.5 | 92.6 | 92.7 | 82.7 | 76.6 | 71.7 | 78.5 | 82.2 | 89.9 | 94.8 | 93.4 | 92.5 |
| Rainfall | ||||||||||||
| Total (mm) | 36.8 | 72.3 | 84.1 | 81 | 59.2 | 19.9 | 77.8 | 60.9 | 58.4 | 93.4 | 43.8 | 16.5 |
| Rain Days | 10 | 17 | 20 | 18 | 10 | 8 | 12 | 17 | 17 | 20 | 13 | 11 |
| Wet Days | 9 | 10 | 16 | 16 | 8 | 5 | 9 | 14 | 15 | 16 | 9 | 4 |
| Wettest Day (& date) | 7.8 (3) | 12.5 (12) | 10.7 (20) | 16 (3) | 11.4 (16) | 7.6 (16) | 30.4 (17) | 13.1 (8) | 8 (28) | 12.7 (21) | 9.2 (29) | 4.9 (4) |
| Duration (hrs) | 25.5 | 49.1 | 62.6 | 58.4 | 25.9 | 9.5 | 38.7 | 28.8 | 39.5 | 48.8 | 37.7 | 14.1 |
| Lowest Acidity (& date) | 5.4 (2) | 5.3 (27) | 5.27 (20) | 6 (28) | 6.2 (9) | 6.3 (2) | 5.5 (10) | 6.37 (11) | 5.1 (23) | 5.9 (21) | 5.6 (27) | 6.05 (24) |
| Wind Directions | ||||||||||||
| North | 2 | 6 | 7 | 7 | 9 | 1 | 5 | 0 | 7 | 1 | 4 | 7 |
| North-East | 4 | 0 | 5 | 2 | 6 | 2 | 1 | 3 | 0 | 0 | 2 | 4 |
| East | 4 | 1 | 3 | 0 | 4 | 2 | 2 | 1 | 0 | 2 | 1 | 1 |
| South-East | 3 | 2 | 4 | 1 | 1 | 2 | 0 | 7 | 4 | 4 | 0 | 0 |
| South | 10 | 6 | 6 | 10 | 2 | 2 | 3 | 5 | 2 | 13 | 6 | 4 |
| South-West | 0 | 0 | 1 | 1 | 4 | 3 | 7 | 2 | 0 | 4 | 2 | 1 |
| West | 3 | 0 | 2 | 1 | 1 | 3 | 2 | 3 | 2 | 0 | 4 | 5 |
| North-West | 4 | 12 | 1 | 8 | 4 | 11 | 6 | 6 | 12 | 3 | 10 | 7 |
| Calm | 1 | 1 | 2 | 0 | 0 | 3 | 5 | 4 | 3 | 4 | 1 | 2 |
| Wind Speeds (mph) | ||||||||||||
| Mean Over 24 hrs | 8 | 7.1 | 6.4 | 7 | 5 | 4.7 | 4.2 | 3.2 | 6.2 | 4.7 | 5.6 | 5.9 |
| Max Gust (& date) | 40 (11) | 39 (6) | 39 (16) | 50 (30) | 52 (17) | 34 (7) | 33 (18) | 27 (31) | 39 (17) | 38 (31) | 49 (8) | 54 (27) |
| Pressure (mb) | ||||||||||||
| Mean at 0900 hrs | 1008.3 | 1016.9 | 1003.7 | 1011.8 | 1018.6 | 1016.4 | 1013.1 | 1014.3 | 1014.3 | 1010.6 | 1023.7 | 1024.7 |
| Max Pressure (& date) | 1036.1 (14) | 1043.3 (12) | 1018.6 (5) | 1032.8 (13) | 1030.6 (8) | 1027 (18) | 1026.7 (2) | 1026.1 (1) | 1026.5 (1) | 1034 (31) | 1044.7 (16) | 1041.4 (10) |
| Min Pressure (& date) | 976.1 (24) | 984.5 (6) | 989.8 (28) | 994.1 (4,6) | 995.6 (17) | 1001.8 (16) | 994.4 (18) | 998.4 (7) | 993.2 (30) | 986.4 (7) | 996.3 (8) | 996.9 (28) |
| Insolation | ||||||||||||
| Mean Cloud Cover (%) | 68.8 | 68.8 | 77.5 | 78.8 | 61.3 | 70 | 65 | 73.8 | 76.3 | 77.5 | 72.5 | 65 |
| Total Sunshine (hrs) | 86.6 | 87.2 | 86.5 | 143.2 | 211.9 | 210.7 | 179.4 | 190.7 | 113.8 | 93.5 | 75.7 | 85.6 |
| Sunniest Day (& date) | 7.5 (25) | 8.7 (25) | 7.7 (14) | 11.3 (30) | 13.3 (30) | 12.8 (21) | 11.5 (4) | 11.9 (27) | 10.3 (4) | 7.7 (28) | 7.5 (1,4) | 6.6 (14) |
| Sunless Days | 10 | 8 | 8 | 3 | 2 | 0 | 2 | 3 | 4 | 6 | 11 | 8 |
| Days with Fog (at 0900hrs) | 6 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 7 | 6 | 2 | 2 |
| Other Ppt | ||||||||||||
| Days with snow/sleet | 2 | 3 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Lying Snow (>50%) | 3 | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Hail (< 0.5cm) | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Hail (>/=0.5cm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Thunder heard | 1 | 0 | 0 | 0 | 3 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
| Ground Obs | ||||||||||||
| Lowest Grass Min (& date) | -8.7 (16) | -9.1 (25) | -10.9 (5) | -5.9 (17) | -3.9 (5) | 0.3 (3) | 4.3 (15) | 6.2 (28) | 1.4 (10) | 2.6 (29) | -6.4 (10) | -8 (31) |
| Days with Ground Frost | 26 | 20 | 19 | 16 | 2 | 0 | 0 | 0 | 0 | 0 | 16 | 22 |
| Lowest Conc. Min (& date) | -5.9 (16) | -4.1 (25) | -7.7(18) | -0.3 (21) | 0.6 (4) | 5.2 (3) | 8 (15) | 9.3 (10) | 3.4 (17) | 4.3 (29) | -5.4 (15) | -8.4 (31) |
| Soil Temps (C, means) | ||||||||||||
| 5cm | 1.1 | 2.6 | 3.6 | 7.5 | 11.1 | 13.4 | 16 | 15.4 | 11.5 | 11.5 | 6 | 2.9 |
| 10cm | 1.6 | 2.9 | 3.9 | 8.4 | 11.5 | 13.8 | 16.3 | 15.7 | 12 | 12.1 | 6.8 | 3.6 |
| 20cm | 2.2 | 3.4 | 4.4 | 8.9 | 12.4 | 15.3 | 17.7 | 17 | 13.2 | 12.7 | 7.7 | 4.5 |
| 30cm | 2.8 | 4.2 | 5.1 | 8.9 | 12.8 | 15.9 | 18.1 | 17.5 | 14.8 | 13.3 | 8.2 | 4.9 |
| 40cm | 3.1 | 4.5 | 5.3 | 8.8 | 12.6 | 15.9 | 18.2 | 17.7 | 14.7 | 13.2 | 8.3 | 5 |
| 50cm | 3.7 | 4.9 | 5.6 | 8.9 | 12.9 | 16.2 | 18.4 | 18.2 | 15.3 | 13.8 | 8.9 | 5.6 |
| 100cm | 4.6 | 5.1 | 5.5 | _ | 11.7 | 14.9 | 17.2 | 17.5 | 14.9 | 13.1 | 9.8 | 6.8 |