Monthly Report for January 2011

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 2.8 °C (+0.4) -0.9 °C 11.4 °C 13:22
Maximum Temperature 6.9 °C (-0.1) 1.2 °C 13.3 °C 12:16
Mean Temperature 5.1 °C (+0.1) 0.5 °C 12.1 °C
Minimum Humidity 76% 57% 94% 15:21
Maximum Humidity 92% 76% 98% 10:14
Mean Humidity 85% 64% 97%
Minimum Pressure 1015 hPa 988 hPa 1038 hPa 12:08
Maximum Pressure 1022 hPa 1003 hPa 1040 hPa 13:44
Mean Pressure 1019 hPa 996 hPa 1039 hPa
Mean Wind Speed 5.4 mph (+0.2) 2.1 mph 10.7 mph
Maximum Wind Speed 13.7 mph 7.4 mph 22.8 mph n/a
Maximum Gust 19.3 mph 8.7 mph 33.1 mph 13:13
Mean Wind Direction SW N N
Rainfall 73.0 mm (133%) 0.0 mm 16.1 mm
Maximum Hourly Rain 2.2 mm 0.3 mm 5.5 mm 11:17
Maximum 10-min Rain 1.1 mm 0.2 mm 3.8 mm 11:01
Maximum Rain Rate 12 mm/h 0.8 mm/h 40 mm/h 11:11
Minimum Dew Point 0.3 °C -6.5 °C 10.5 °C 13:20
Maximum Dew Point 4.8 °C -3.8 °C 12.0 °C 10:39
Mean Dew Point 2.7 °C -5.6 °C 11.3 °C
Night Minimum (21-09) 3.6 °C -0.9 °C 11.4 °C 07:08
Day Maximum (09-21) 6.6 °C 1.2 °C 13.3 °C 13:39
Max 10m Temp Rise 0.2 °C 0.1 °C 0.4 °C 09:35
Max 1hr Temp Rise 0.8 °C 0.3 °C 1.5 °C 10:15
Max 1hr Hum Rise 4% 1% 10% 14:49
Max 10m Temp Fall 0.3 °C 0.1 °C 0.7 °C 12:17
Max 1hr Temp Fall 0.9 °C 0.3 °C 1.8 °C 13:35
Max 1hr Hum Fall 6% 1% 18% 12:56
Max 10m Wind Speed 9.1 mph 4.7 mph 14.5 mph 13:44
Minimum Feels-like -0.6 °C -6.0 °C 12.8 °C 13:09
Maximum Feels-like 6.9 °C 0.2 °C 15.6 °C 12:09
Mean Feels-like 3.4 °C -3.7 °C 14.0 °C n/a
Air-frost Hrs 14 hrs 0 hrs 5 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 4.1 °C (-0.5) 1.4 °C 9.5 °C
Humidity Range 16% 4% 30%
Pressure Range 7 hPa 1 hPa 20 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 39 (85%) [17%] 0 7.3
Wet Hours 62 (93%) [8.3%] 0 10

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 19 Min < -5.0 °C 0 > 0 hrs 21 Falling Snow 1
> 0.1 mm 17 Min < 0.0 °C 6 > 1 hrs 8 Lying Snow 0
> 0.3 mm 14 Mean < 0.0 °C 0 > 3 hrs 5 Hail 0
> 1.0 mm 10 Mean > 20.0 °C 0 > 5 hrs 3 Thunder 1
> 5.0 mm 7 Max > 25.0 °C 0 > 10 hrs 0 Dense Fog 0
> 10.0 mm 2 Max > 30.0 °C 0 > 25% max poss. 6 Gusts > 30mph 3
> 20.0 mm 0 Ice Days 0 > 95% max poss. 1 Total Events 5

Misc.

Mean rainfall for days with >0.2mm: 5.2 mm
Total snowfall: 0.1 cm - 0% of the total precipitation
Total lying snow: 0 cm

Graphs and Charts

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