Monthly Weather Reports
Special note: Wind data not valid for this month (suspended 17th April - 28th July; replaced by METAR data from Heathrow)
NB: Everything below here is currently in development
Graph for this month not available (windtempraintrend52010.gif)
View daily breakdown
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Report for May 2010
Temperature | ||
| Measure | Value (anomaly) | Day |
| Lowest Temperature | 1.0 °C. | 12th |
| Highest Temperature | 29.1 °C. | 23rd |
| Mean Temperature | 11.8 °C (-0.7) | . |
| Mean Minimum | 7.4 °C (-0.9) | . |
| Mean Maximum | 16.7 °C (+0.0) | . |
| Highest Minimum | 14.4 °C. | 24th |
| Lowest Maximum | 9.2 °C. | 11th |
| Coldest Day | 6.8 °C. | 3rd |
| Warmest Day | 20.9 °C. | 24th |
Rainfall* | ||
| Measure | Value (anomaly) | Day |
| Total Rain | 68.9 mm (0%) | . |
| Wettest Day | 31.8 mm. | 1st |
| Rain Days | 7. | . |
| Rain Days >1.0 mm | 5 (-4) | . |
| Mean Rain-day rain | 9.8 mm. | . |
Wind Speed | ||
| Measure | Value (anomaly) | Day |
| Mean Wind speed | 6.9 mph (+2.2) | . |
| Maximum Gust | 32.0 mph. | 30th |
| Maximum Speed | 20.7 mph. | 30th |
| Calmest Day | 1.1 mph. | 13th |
| Windiest Day | 13.3 mph. | 30th |
| Windy Days (>25 mph gusts) | 4. | . |
| Mean Direction | 352° (N). | . |
Relative Humidity | ||
| Measure | Value | Day |
| Lowest RH | 32%. | 24th |
| Highest RH | 96%. | 2nd |
| Mean RH | 68%. | . |
| Mean Minimum | 48%. | . |
| Mean Maximum | 85%. | . |
| Highest Minimum | 73%. | 8th |
| Lowest Maximum | 69%. | 24th |
| Lowest Mean | 52%. | 24th |
| Highest Mean | 88%. | 2nd |
Dew Point | ||
| Measure | Value | Day |
| Lowest Dew Point | -2.2 °C. | 12th |
| Highest Dew Point | 15.1 °C. | 21st |
| Mean Dew Point | 5.6 °C. | . |
| Mean Minimum | 2.6 °C. | . |
| Mean Maximum | 8.3 °C. | . |
| Highest Minimum | 9.6 °C. | 21st |
| Lowest Maximum | 1.4 °C. | 11th |
| Lowest Mean | -0.2 °C. | 11th |
| Highest Mean | 12.2 °C. | 21st |
Pressure | ||
| Measure | Value | Day |
| Lowest Pressure | 1006 hPa. | 29th |
| Highest Pressure | 1033 hPa. | 20th |
| Mean Pressure | 1018 hPa. | . |
*: Includes snowfall (if recorded), which is manually entered so may take a few days to appear for the current month. 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.
NB: Everything below here is currently in development
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Summary | ||||||||||||||
| Day | Temperature | Rainfall | Wind Speed | Rel Humidity | Dew Point | Pressure | ||||||||
| Min | Max | Avg | Total | Avg | Gust | Min | Max | Avg | Min | Max | Avg | Min | Max | |
| 1 | 9.3 | 16.0 | 11.4 | 31.8 | 7.5 | 15.0 | 54% | 94% | 82% | 5.6 | 10.1 | 8.1 | 1009 | 1011 |
| 2 | 4.9 | 9.3 | 7.8 | 22.4 | 4.6 | 0.0 | 72% | 96% | 88% | 1.9 | 8.2 | 5.9 | 1009 | 1019 |
| 3 | 4.4 | 11.0 | 6.8 | 0.5 | 6.5 | 28.0 | 48% | 88% | 71% | -1.7 | 4.0 | 1.5 | 1019 | 1028 |
| 4 | 2.8 | 12.7 | 7.1 | 0.0 | 7.2 | 12.0 | 48% | 82% | 66% | -1.2 | 3.4 | 1.0 | 1027 | 1030 |
| 5 | 2.5 | 15.0 | 9.5 | 0.0 | 4.8 | 12.0 | 53% | 87% | 69% | -0.6 | 7.0 | 3.8 | 1018 | 1027 |
| 6 | 6.9 | 16.6 | 10.9 | 0.0 | 6.6 | 12.0 | 40% | 82% | 64% | 0.3 | 6.1 | 3.9 | 1012 | 1018 |
| 7 | 5.9 | 12.8 | 8.6 | 0.0 | 7.5 | 12.0 | 47% | 77% | 65% | 0.8 | 3.6 | 2.1 | 1011 | 1015 |
| 8 | 6.7 | 9.4 | 7.9 | 0.0 | 7.1 | 10.0 | 73% | 88% | 81% | 2.8 | 6.2 | 4.8 | 1011 | 1016 |
| 9 | 6.3 | 11.5 | 8.4 | 0.0 | 7.2 | 13.0 | 58% | 91% | 77% | 3.2 | 6.4 | 4.5 | 1012 | 1016 |
| 10 | 5.1 | 12.8 | 8.6 | 0.0 | 8.0 | 20.0 | 48% | 87% | 67% | -0.6 | 4.1 | 2.4 | 1012 | 1015 |
| 11 | 3.1 | 9.2 | 6.8 | 0.0 | 6.8 | 12.0 | 51% | 75% | 62% | -1.2 | 1.4 | -0.2 | 1012 | 1014 |
| 12 | 1.0 | 11.4 | 6.9 | 0.3 | 4.8 | 0.0 | 46% | 84% | 64% | -2.2 | 2.8 | 0.1 | 1014 | 1016 |
| 13 | 1.3 | 14.6 | 7.9 | 0.0 | 1.1 | 0.0 | 39% | 87% | 62% | -1.8 | 3.7 | 0.6 | 1012 | 1017 |
| 14 | 5.0 | 14.9 | 10.3 | 0.0 | 2.0 | 10.0 | 43% | 78% | 59% | 0.8 | 4.9 | 2.4 | 1010 | 1014 |
| 15 | 8.3 | 16.6 | 12.4 | 0.0 | 6.9 | 12.0 | 42% | 75% | 58% | 2.2 | 6.6 | 4.0 | 1013 | 1016 |
| 16 | 6.5 | 15.2 | 10.8 | 8.9 | 9.7 | 16.0 | 60% | 93% | 74% | 2.0 | 9.8 | 6.3 | 1015 | 1022 |
| 17 | 5.7 | 18.0 | 11.6 | 0.0 | 5.5 | 10.0 | 42% | 93% | 70% | 3.3 | 8.8 | 5.7 | 1021 | 1028 |
| 18 | 5.7 | 18.1 | 12.1 | 0.0 | 4.6 | 10.0 | 46% | 90% | 68% | 3.2 | 9.4 | 6.0 | 1028 | 1030 |
| 19 | 7.0 | 20.4 | 14.5 | 0.0 | 6.1 | 10.0 | 48% | 90% | 69% | 4.8 | 10.8 | 8.5 | 1029 | 1031 |
| 20 | 10.8 | 22.4 | 16.2 | 0.0 | 4.4 | 0.0 | 54% | 89% | 75% | 8.3 | 14.9 | 11.6 | 1030 | 1033 |
| 21 | 13.1 | 24.3 | 18.2 | 0.0 | 5.7 | 0.0 | 46% | 89% | 70% | 9.6 | 15.1 | 12.2 | 1030 | 1032 |
| 22 | 10.6 | 24.9 | 17.2 | 0.0 | 7.0 | 12.0 | 41% | 92% | 66% | 8.3 | 12.8 | 10.3 | 1027 | 1031 |
| 23 | 10.6 | 29.1 | 19.4 | 0.0 | 4.7 | 12.0 | 33% | 92% | 62% | 8.2 | 14.1 | 11.1 | 1017 | 1029 |
| 24 | 14.4 | 28.8 | 20.9 | 0.0 | 7.4 | 23.0 | 32% | 69% | 52% | 8.4 | 12.8 | 10.3 | 1009 | 1017 |
| 25 | 11.0 | 19.9 | 15.1 | 0.0 | 10.6 | 16.0 | 44% | 82% | 64% | 2.2 | 11.5 | 8.0 | 1009 | 1015 |
| 26 | 8.8 | 17.9 | 12.8 | 0.0 | 9.1 | 14.0 | 48% | 75% | 62% | 2.6 | 7.8 | 5.4 | 1007 | 1011 |
| 27 | 9.5 | 17.5 | 12.5 | 1.4 | 6.8 | 12.0 | 39% | 85% | 65% | 1.0 | 9.9 | 5.6 | 1008 | 1011 |
| 28 | 7.9 | 19.0 | 13.6 | 0.0 | 11.2 | 26.0 | 37% | 79% | 55% | 0.2 | 7.3 | 4.4 | 1011 | 1016 |
| 29 | 11.0 | 14.7 | 13.2 | 3.6 | 11.0 | 28.0 | 63% | 91% | 78% | 6.2 | 12.5 | 9.4 | 1006 | 1016 |
| 30 | 11.7 | 18.7 | 14.6 | 0.0 | 13.3 | 32.0 | 36% | 89% | 64% | 1.5 | 11.5 | 7.2 | 1006 | 1016 |
| 31 | 10.5 | 15.8 | 12.9 | 0.0 | 7.0 | 10.0 | 57% | 79% | 71% | 3.4 | 10.8 | 7.7 | 1015 | 1023 |
Graph for this month not available (windtempraintrend52010.gif)