Monthly Report for January 2010

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature -0.2 °C (-2.6) -5.3 °C 4.7 °C 10:49
Maximum Temperature 3.7 °C (-3.3) 0.1 °C 8.6 °C 13:37
Mean Temperature 1.8 °C (-2.9) -2.6 °C 6.9 °C
Minimum Humidity 82% 63% 98% 13:51
Maximum Humidity 95% 79% 98% 10:57
Mean Humidity 90% 72% 98%
Minimum Pressure 1010 hPa 988 hPa 1038 hPa 08:42
Maximum Pressure 1019 hPa 1000 hPa 1042 hPa 12:12
Mean Pressure 1015 hPa 994 hPa 1040 hPa
Mean Wind Speed 4.1 mph (-1.1) 1.6 mph 8.2 mph
Maximum Wind Speed 10.0 mph 4.5 mph 16.1 mph n/a
Maximum Gust 14.7 mph 6.0 mph 25.9 mph 11:43
Mean Wind Direction S NNE NNW
Rainfall 56.1 mm (102%) 0.0 mm 9.0 mm
Maximum Hourly Rain 1.1 mm 0.3 mm 2.2 mm 12:15
Maximum 10-min Rain 0.4 mm 0.3 mm 0.8 mm 11:49
Maximum Rain Rate 4.3 mm/h 1.2 mm/h 16 mm/h 11:13
Minimum Dew Point -1.7 °C -6.3 °C 3.3 °C 11:18
Maximum Dew Point 2.2 °C -2.3 °C 7.6 °C 14:04
Mean Dew Point 0.2 °C -4.6 °C 6.4 °C
Night Minimum (21-09) 0.4 °C -5.3 °C 6.0 °C n/a
Day Maximum (09-21) 3.6 °C 0.1 °C 8.6 °C n/a
Max 10m Temp Rise 0.3 °C 0.1 °C 0.8 °C 11:46
Max 1hr Temp Rise 0.9 °C 0.1 °C 2.2 °C 12:21
Max 1hr Hum Rise 3% 0% 9% 13:38
Max 10m Temp Fall 0.2 °C 0.1 °C 0.7 °C 12:47
Max 1hr Temp Fall 0.7 °C 0.2 °C 1.2 °C 12:55
Max 1hr Hum Fall 5% 0% 12% 10:52
Max 10m Wind Speed 7.0 mph 3.1 mph 11.3 mph 12:36
Minimum Feels-like -4.2 °C -11.5 °C 1.7 °C 10:25
Maximum Feels-like 3.5 °C -3.3 °C 8.1 °C 13:04
Mean Feels-like -0.2 °C -6.7 °C 5.5 °C n/a
Air-frost Hrs 185 hrs 0 hrs 22 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 3.9 °C (-0.7) 0.7 °C 8.7 °C
Humidity Range 14% 0% 31%
Pressure Range 9 hPa 1 hPa 23 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 56 (122%) [24%] 0 7
Wet Hours 71 (106%) [9.5%] 0 14

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 22 Min < -5.0 °C 1 > 0 hrs 18 Falling Snow 0
> 0.1 mm 18 Min < 0.0 °C 15 > 1 hrs 13 Lying Snow 11
> 0.3 mm 15 Mean < 0.0 °C 9 > 3 hrs 6 Hail 0
> 1.0 mm 12 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. 11 Gusts > 30mph 0
> 20.0 mm 0 Ice Days 0 > 95% max poss. 2 Total Events 11

Misc.

Mean rainfall for days with >0.2mm: 3.7 mm
Total snowfall: 18 cm - 32% of the total precipitation
Total lying snow: 59 cm

Graphs and Charts

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