Monthly Report for December 2010

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature -0.9 °C (-4.1) -7.2 °C 6.9 °C 10:52
Maximum Temperature 3.2 °C (-4.6) -1.0 °C 8.6 °C 13:49
Mean Temperature 1.3 °C (-4.4) -3.2 °C 7.9 °C
Minimum Humidity 80% 57% 98% 12:46
Maximum Humidity 94% 80% 98% 11:18
Mean Humidity 88% 71% 98%
Minimum Pressure 1011 hPa 989 hPa 1027 hPa 10:48
Maximum Pressure 1018 hPa 995 hPa 1037 hPa 13:36
Mean Pressure 1014 hPa 992 hPa 1032 hPa
Mean Wind Speed 4.4 mph (-0.7) 1.5 mph 10.4 mph
Maximum Wind Speed 11.1 mph 5.4 mph 17.6 mph n/a
Maximum Gust 15.9 mph 7.1 mph 28.9 mph 12:06
Mean Wind Direction SSE N N
Rainfall 26.7 mm (48%) 0.0 mm 8.0 mm
Maximum Hourly Rain 1.1 mm 0.3 mm 2.2 mm 13:01
Maximum 10-min Rain 0.6 mm 0.3 mm 0.8 mm 13:13
Maximum Rain Rate 7 mm/h 0.7 mm/h 20 mm/h 16:16
Minimum Dew Point -3.3 °C -9.3 °C 6.6 °C 13:24
Maximum Dew Point 1.6 °C -3.8 °C 8.3 °C 13:39
Mean Dew Point -0.5 °C -5.8 °C 7.7 °C
Night Minimum (21-09) -0.5 °C -7.2 °C 7.8 °C n/a
Day Maximum (09-21) 3.0 °C -1.9 °C 8.6 °C n/a
Max 10m Temp Rise 0.2 °C 0.1 °C 0.5 °C 09:55
Max 1hr Temp Rise 0.9 °C 0.2 °C 1.9 °C 11:15
Max 1hr Hum Rise 4% 0% 10% 11:49
Max 10m Temp Fall 0.3 °C 0.1 °C 0.7 °C 10:28
Max 1hr Temp Fall 0.9 °C 0.3 °C 2.4 °C 13:49
Max 1hr Hum Fall 4% 0% 14% 12:20
Max 10m Wind Speed 7.7 mph 4.3 mph 12.8 mph 11:40
Minimum Feels-like -4.9 °C -10.2 °C 5.5 °C 10:50
Maximum Feels-like 2.9 °C -3.3 °C 9.1 °C 13:55
Mean Feels-like -0.9 °C -6.1 °C 8.0 °C n/a
Air-frost Hrs 287 hrs 0 hrs 24 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 4.1 °C (-0.5) 0.9 °C 8.7 °C
Humidity Range 14% 0% 33%
Pressure Range 7 hPa 1 hPa 26 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 29 (60%) [13%] 0 4.5
Wet Hours 36 (58%) [4.8%] 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 14 Min < -5.0 °C 4 > 0 hrs 12 Falling Snow 2
> 0.1 mm 14 Min < 0.0 °C 21 > 1 hrs 8 Lying Snow 14
> 0.3 mm 9 Mean < 0.0 °C 11 > 3 hrs 4 Hail 0
> 1.0 mm 7 Mean > 20.0 °C 0 > 5 hrs 0 Thunder 0
> 5.0 mm 1 Max > 25.0 °C 0 > 10 hrs 0 Dense Fog 1
> 10.0 mm 0 Max > 30.0 °C 0 > 25% max poss. 8 Gusts > 30mph 0
> 20.0 mm 0 Ice Days 6 > 95% max poss. 0 Total Events 17

Misc.

Mean rainfall for days with >0.2mm: 3.0 mm
Total snowfall: 16 cm - 59% of the total precipitation
Total lying snow: 27 cm

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