Monthly Report for July 2009

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 13.5 °C (+0.1) 10.4 °C 18.6 °C 08:14
Maximum Temperature 21.7 °C (-0.7) 18.0 °C 29.5 °C 15:32
Mean Temperature 17.0 °C (-0.3) 14.7 °C 21.7 °C
Minimum Humidity 53% 38% 75% 15:37
Maximum Humidity 90% 79% 97% 07:38
Mean Humidity 74% 60% 88%
Minimum Pressure 1009 hPa 1001 hPa 1021 hPa 12:40
Maximum Pressure 1015 hPa 1004 hPa 1024 hPa 11:24
Mean Pressure 1012 hPa 1002 hPa 1022 hPa
Mean Wind Speed n/a (-4.3) n/a n/a
Maximum Wind Speed n/a n/a n/a n/a
Maximum Gust n/a n/a n/a n/a
Mean Wind Direction n/a n/a n/a
Rainfall 55.4 mm (132%) 0.0 mm 10.2 mm
Maximum Hourly Rain 1.7 mm 0.3 mm 5.5 mm 15:20
Maximum 10-min Rain 1.1 mm 0.3 mm 2.8 mm 15:11
Maximum Rain Rate 14 mm/h 0.3 mm/h 49 mm/h 16:04
Minimum Dew Point 9.4 °C 5.9 °C 12.2 °C 11:18
Maximum Dew Point 14.5 °C 10.7 °C 18.8 °C 11:24
Mean Dew Point 12.0 °C 7.3 °C 15.5 °C
Night Minimum (21-09) 13.5 °C 10.4 °C 18.6 °C n/a
Day Maximum (09-21) 21.7 °C 18.0 °C 29.5 °C n/a
Max 10m Temp Rise 0.9 °C 0.4 °C 1.7 °C 11:05
Max 1hr Temp Rise 2.3 °C 1.3 °C 4.4 °C 12:40
Max 1hr Hum Rise 10% 5% 22% 17:07
Max 10m Temp Fall 0.8 °C 0.4 °C 1.8 °C 12:46
Max 1hr Temp Fall 1.9 °C 1.2 °C 3.4 °C 16:41
Max 1hr Hum Fall 11% 5% 17% 12:28
Max 10m Wind Speed 4.3 mph 2.8 mph 5.8 mph n/a
Minimum Feels-like 0.0 °C 0.0 °C 0.0 °C n/a
Maximum Feels-like n/a n/a n/a n/a
Mean Feels-like n/a n/a n/a n/a
Air-frost Hrs 0 hrs 0 hrs 0 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 8.2 °C (-0.8) 4.2 °C 14.5 °C
Humidity Range 38% 18% 52%
Pressure Range 6 hPa 1 hPa 12 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 165 (89%) [36%] 0.3 11.6
Wet Hours 48 (141%) [6.5%] 0 7

NB: Hover over a value to view the date it was recorded.
    Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations. Consequently, their reliablity is questionable and they         are provided for interest only.

Days Of...
Rainfall Temperature Sunshine Other
> 0.0 mm 20 Min < -5.0 °C 0 > 0 hrs 31 Falling Snow 0
> 0.1 mm 17 Min < 0.0 °C 0 > 1 hrs 29 Lying Snow 0
> 0.3 mm 17 Mean < 0.0 °C 0 > 3 hrs 23 Hail 0
> 1.0 mm 15 Mean > 20.0 °C 3 > 5 hrs 16 Thunder 3
> 5.0 mm 2 Max > 25.0 °C 4 > 10 hrs 2 Dense Fog 0
> 10.0 mm 1 Max > 30.0 °C 0 > 25% max poss. 23 Gusts > 30mph
> 20.0 mm 0 Min > 20.0 °C 0 > 95% max poss. 0 Total Events 3

Misc.

Mean rainfall for days with >0.2mm: 3.3 mm
Total snowfall: 0 cm - 0% of the total precipitation
Total lying snow: 0 cm

Graphs and Charts

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