Annual Weather Reports
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Report for 2011
Jump to monthly breakdownTemperature | ||
| Measure | Value (anomaly) | Day |
| Lowest Temperature | -2.6 °C. | 8th March |
| Highest Temperature | 31.9 °C. | 27th June |
| Mean Temperature | 12.0 °C (+1.3) | . |
| Mean Minimum | 8.4 °C (+1.2) | . |
| Mean Maximum | 15.6 °C (+1.3) | . |
| Highest Minimum | 18.2 °C. | 27th June |
| Lowest Maximum | 1.2 °C. | 28th Jan |
| Coldest Day | 0.5 °C. | 28th Jan |
| Warmest Day | 25.4 °C. | 27th June |
| Coldest Month | 5.1 °C (+0.4) | Jan |
| Warmest Month | 17.0 °C (-0.7) | Aug |
| Most -ve anom Month | 16.8 °C (-1.1) | July |
| Most +ve anom Month | 13.6 °C (+4.7) | April |
Rainfall* | ||
| Measure | Value (anomaly) | Day |
| Total Rain | 503.1 mm (0%) | . |
| Wettest Day | 21.7 mm. | 6th Sep |
| Rain Days | 140. | . |
| Rain Days >1.0 mm | 92 (-21) | . |
| Mean Rain-day rain | 3.6 mm. | . |
| Max Rain rate** | 100 mm/h. | 6th Sep |
| Wettest hour | 18.4 mm. | 6th Sep |
| Wettest Month | 86.9 mm (0%) | June |
| Driest Month | 1.7 mm (0%) | April |
Wind Speed | ||
| Measure | Value (anomaly) | Day |
| Mean Wind speed | 5.1 mph (+0.5) | . |
| Maximum Gust | 41.4 mph. | 12th Dec |
| Maximum Speed | 25.5 mph. | 4th Feb |
| Calmest Day | 0.8 mph. | 20th Nov |
| Windiest Day | 11.8 mph. | 4th Feb |
| Windy Days (>25 mph gusts) | 60. | . |
| Mode Direction | SW. | . |
| Calmest Month | 4.2 mph (-0.1) | July |
| Windiest Month | 6.3 mph (+1.2) | Dec |
Relative Humidity | ||
| Measure | Value | Day |
| Lowest RH | 26%. | 19th April |
| Highest RH | 98%. | 6th Jan |
| Mean RH | 74%. | . |
| Mean Minimum | 59%. | . |
| Mean Maximum | 88%. | . |
| Highest Minimum | 96%. | 20th Nov |
| Lowest Maximum | 66%. | 21st April |
| Lowest Mean | 46%. | 25th May |
| Highest Mean | 98%. | 20th Nov |
| Least Humid Month | 60%. | May |
| Most Humid Month | 89%. | Nov |
Dew Point | ||
| Measure | Value | Day |
| Lowest Dew Point | -6.5 °C. | 28th Jan |
| Highest Dew Point | 18.6 °C. | 0th Sep |
| Mean Dew Point | 7.2 °C. | . |
| Mean Minimum | 4.6 °C. | . |
| Mean Maximum | 9.8 °C. | . |
| Highest Minimum | 14.6 °C. | 9th Sep |
| Lowest Maximum | -3.8 °C. | 28th Jan |
| Lowest Mean | -5.6 °C. | 28th Jan |
| Highest Mean | 15.9 °C. | 9th Sep |
| Least Humid Month | 2.7 °C. | Jan |
| Most Humid Month | 11.6 °C. | Sep |
Pressure | ||
| Measure | Value | Day |
| Lowest Pressure | 978 hPa. | 16th Dec |
| Highest Pressure | 1043 hPa. | 22nd March |
| Mean Pressure | 1016 hPa. | . |
| Lowest month average SLP | 1011 hPa. | Dec |
| Highest month average SLP | 1022 hPa. | March |
*: Includes snowfall (if recorded), which is manually entered so may take a few days to appear for the current year. NB that rain rate and max in 1hr are incalculable for snow events.
**: Rain rates are manually checked and readjusted from software-given values (within a week or so), so may differ from those quoted during current rain events.
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Summary | ||||||||||||
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Lowest Temp | -0.9 °C. | -1.7 °C. | -2.6 °C. | 4.1 °C. | 3.2 °C. | 8.0 °C. | 9.1 °C. | 9.1 °C. | 7.2 °C. | 3.3 °C. | 0.4 °C. | -1.3 °C. |
| Highest Temp | 13.3 °C. | 14.2 °C. | 17.7 °C. | 26.5 °C. | 24.5 °C. | 31.9 °C. | 26.4 °C. | 29.6 °C. | 27.4 °C. | 27.1 °C. | 17.4 °C. | 12.9 °C. |
| Mean Temp | 5.1 °C (+0.4) | 7.4 °C (+2.5) | 7.5 °C (+0.5) | 13.6 °C (+4.7) | 14.2 °C (+1.7) | 15.9 °C (+0.2) | 16.8 °C (-1.1) | 17.0 °C (-0.7) | 16.2 °C (+1.3) | 13.6 °C (+1.9) | 10.4 °C (+2.8) | 6.8 °C (+1.3) |
| Mean Minimum | 2.8 °C (+0.4) | 5.2 °C (+3.0) | 3.4 °C (-0.2) | 8.6 °C (+3.6) | 9.5 °C (+1.2) | 11.3 °C (+0.2) | 12.5 °C (-0.9) | 13.2 °C (+0.0) | 12.4 °C (+1.3) | 10.5 °C (+1.7) | 7.6 °C (+2.6) | 4.3 °C (+1.1) |
| Mean Maximum | 6.9 °C (-0.1) | 9.5 °C (+1.9) | 11.4 °C (+1.0) | 18.8 °C (+6.0) | 18.5 °C (+1.8) | 20.3 °C (+0.1) | 21.1 °C (-1.3) | 21.1 °C (-1.1) | 20.4 °C (+1.7) | 17.0 °C (+2.4) | 12.8 °C (+2.6) | 9.1 °C (+1.3) |
| Total Rain | 73.3 mm (0%) | 43.6 mm (0%) | 11.1 mm (0%) | 1.7 mm (0%) | 23.8 mm (0%) | 86.9 mm (0%) | 53.1 mm (0%) | 72.2 mm (0%) | 41.1 mm (0%) | 15.2 mm (0%) | 25.2 mm (0%) | 55.9 mm (0%) |
| Wettest Day | 15.9 mm. | 12.2 mm. | 4.4 mm. | 1.4 mm. | 14.5 mm. | 14.8 mm. | 13.7 mm. | 14.6 mm. | 21.7 mm. | 3.6 mm. | 13.0 mm. | 9.1 mm. |
| Rain Days | 18. | 11. | 5. | 2. | 6. | 17. | 13. | 14. | 15. | 7. | 11. | 21. |
| Mean Wind spd | 5.4 mph (+0.2) | 6.0 mph (+0.9) | 4.7 mph (-0.5) | 4.5 mph (-0.4) | 6.0 mph (+1.3) | 5.1 mph (+0.7) | 4.2 mph (-0.1) | 4.3 mph (+0.3) | 5.1 mph (+1.2) | 5.3 mph (+1.2) | 4.5 mph (-0.1) | 6.3 mph (+1.2) |
| Maximum Gust | 33.4 mph. | 35.7 mph. | 33.4 mph. | 28.8 mph. | 33.4 mph. | 33.4 mph. | 27.6 mph. | 26.5 mph. | 36.8 mph. | 38.0 mph. | 32.2 mph. | 41.4 mph. |
| Lowest RH | 57%. | 52%. | 36%. | 26%. | 27%. | 31%. | 33%. | 33%. | 40%. | 35%. | 47%. | 45%. |
| Highest RH | 98%. | 98%. | 98%. | 91%. | 91%. | 95%. | 94%. | 97%. | 98%. | 96%. | 98%. | 98%. |
| Mean RH | 85%. | 85%. | 75%. | 62%. | 60%. | 69%. | 66%. | 70%. | 75%. | 75%. | 89%. | 81%. |
| Lowest Dew Pt | -6.5 °C. | -4.7 °C. | -5.9 °C. | -3.3 °C. | -4.2 °C. | 1.9 °C. | 3.4 °C. | 4.8 °C. | 4.8 °C. | -0.5 °C. | -1.9 °C. | -3.6 °C. |
| Highest Dew Pt | 12.0 °C. | 11.0 °C. | 12.6 °C. | 12.5 °C. | 15.1 °C. | 18.2 °C. | 16.4 °C. | 18.1 °C. | 18.6 °C. | 16.5 °C. | 14.3 °C. | 11.2 °C. |
| Mean Dew Point | 2.7 °C. | 5.0 °C. | 3.0 °C. | 5.8 °C. | 6.1 °C. | 9.6 °C. | 10.0 °C. | 11.1 °C. | 11.6 °C. | 9.0 °C. | 8.5 °C. | 3.7 °C. |
| Lowest Pressure | 988 hPa. | 987 hPa. | 996 hPa. | 1005 hPa. | 1005 hPa. | 995 hPa. | 992 hPa. | 999 hPa. | 1000 hPa. | 991 hPa. | 989 hPa. | 978 hPa. |
| Highest Pressure | 1040 hPa. | 1035 hPa. | 1043 hPa. | 1031 hPa. | 1029 hPa. | 1035 hPa. | 1026 hPa. | 1027 hPa. | 1031 hPa. | 1035 hPa. | 1031 hPa. | 1036 hPa. |
| Mean Pressure | 1018 hPa. | 1014 hPa. | 1022 hPa. | 1018 hPa. | 1016 hPa. | 1015 hPa. | 1012 hPa. | 1014 hPa. | 1013 hPa. | 1017 hPa. | 1017 hPa. | 1011 hPa. |