Monthly Report for December 2011

<<Previous Month
Reset
Next Month>>
Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 4.3 °C (+1.1) -1.3 °C 10.6 °C 12:35
Maximum Temperature 9.1 °C (+1.3) 4.1 °C 12.9 °C 14:48
Mean Temperature 6.8 °C (+1.2) 1.5 °C 11.7 °C
Minimum Humidity 71% 45% 91% 13:18
Maximum Humidity 90% 77% 98% 12:49
Mean Humidity 81% 66% 94%
Minimum Pressure 1007 hPa 980 hPa 1031 hPa 10:32
Maximum Pressure 1016 hPa 995 hPa 1035 hPa 12:17
Mean Pressure 1011 hPa 990 hPa 1032 hPa
Mean Wind Speed 6.2 mph (+1.1) 4.0 mph 9.6 mph
Maximum Wind Speed 15.5 mph 8.7 mph 22.5 mph n/a
Maximum Gust 22.9 mph 12.8 mph 40.9 mph 12:00
Mean Wind Direction SW N W
Rainfall 56.2 mm (100%) 0.0 mm 9.1 mm
Maximum Hourly Rain 1.6 mm 0.3 mm 5.3 mm 15:30
Maximum 10-min Rain 0.8 mm 0.3 mm 3.0 mm 16:02
Maximum Rain Rate 10 mm/h 0.5 mm/h 30 mm/h 15:57
Minimum Dew Point 1.2 °C -3.6 °C 9.8 °C 11:49
Maximum Dew Point 6.6 °C 0.6 °C 11.2 °C 13:29
Mean Dew Point 3.7 °C -1.0 °C 10.3 °C
Night Minimum (21-09) 5.0 °C -1.3 °C 11.5 °C 07:42
Day Maximum (09-21) 8.7 °C 3.8 °C 12.9 °C 14:09
Max 10m Temp Rise 0.3 °C 0.1 °C 1.0 °C 08:43
Max 1hr Temp Rise 1.0 °C 0.3 °C 1.8 °C 10:07
Max 1hr Hum Rise 5% 2% 12% 14:13
Max 10m Temp Fall 0.3 °C 0.1 °C 0.7 °C 13:12
Max 1hr Temp Fall 0.9 °C 0.3 °C 2.4 °C 15:40
Max 1hr Hum Fall 4% 0% 14% 13:09
Max 10m Wind Speed 10.9 mph 6.8 mph 17.4 mph 10:37
Minimum Feels-like 0.7 °C -6.0 °C 11.7 °C 11:07
Maximum Feels-like 8.5 °C 0.6 °C 14.4 °C 13:58
Mean Feels-like 5.0 °C -2.5 °C 13.1 °C n/a
Air-frost Hrs 6 hrs 0 hrs 4 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 4.8 °C (+0.2) 1.9 °C 8.9 °C
Humidity Range 19% 5% 44%
Pressure Range 9 hPa 2 hPa 23 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 68 (142%) [31%] 0 6.5
Wet Hours 60 (97%) [8.1%] 0 8

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 21 Min < -5.0 °C 0 > 0 hrs 25 Falling Snow 1
> 0.1 mm 21 Min < 0.0 °C 2 > 1 hrs 16 Lying Snow 0
> 0.3 mm 15 Mean < 0.0 °C 0 > 3 hrs 10 Hail 0
> 1.0 mm 11 Mean > 20.0 °C 0 > 5 hrs 5 Thunder 0
> 5.0 mm 4 Max > 25.0 °C 0 > 10 hrs 0 Dense Fog 0
> 10.0 mm 0 Max > 30.0 °C 0 > 25% max poss. 14 Gusts > 30mph 4
> 20.0 mm 0 Ice Days 0 > 95% max poss. 0 Total Events 5

Misc.

Mean rainfall for days with >0.2mm: 3.7 mm
Total snowfall: 0.5 cm - 1% of the total precipitation
Total lying snow: 0 cm

Graphs and Charts

Chart
View daily breakdown