Monthly Report for January 2013

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 2.1 °C (-0.3) -5.5 °C 9.6 °C 11:04
Maximum Temperature 6.1 °C (-0.9) -0.8 °C 13.5 °C 13:04
Mean Temperature 4.2 °C (-0.6) -2.4 °C 11.6 °C
Minimum Humidity 76% 49% 95% 11:56
Maximum Humidity 94% 78% 98% 10:41
Mean Humidity 87% 71% 97%
Minimum Pressure 1009 hPa 991 hPa 1036 hPa 12:35
Maximum Pressure 1017 hPa 999 hPa 1038 hPa 12:21
Mean Pressure 1013 hPa 994 hPa 1037 hPa
Mean Wind Speed 5.0 mph (-0.2) 0.7 mph 10.1 mph
Maximum Wind Speed 13.1 mph 4.9 mph 25.9 mph 13:07
Maximum Gust 18.7 mph 6.7 mph 35.5 mph 12:26
Mean Wind Direction S NNE N
Rainfall 47.0 mm (85%) 0.0 mm 8.0 mm
Maximum Hourly Rain 1.1 mm 0.3 mm 2.3 mm 12:00
Maximum 10-min Rain 0.6 mm 0.3 mm 1.5 mm 10:54
Maximum Rain Rate 9 mm/h 0.3 mm/h 30 mm/h 11:07
Minimum Dew Point -0.4 °C -6.7 °C 9.0 °C 11:05
Maximum Dew Point 4.5 °C -2.3 °C 12.3 °C 12:43
Mean Dew Point 2.1 °C -3.3 °C 10.2 °C
Night Minimum (21-09) 2.7 °C -5.5 °C 9.6 °C 07:06
Day Maximum (09-21) 5.7 °C -0.8 °C 13.5 °C 16:12
Max 10m Temp Rise 0.3 °C 0.1 °C 0.6 °C 10:03
Max 1hr Temp Rise 0.9 °C 0.3 °C 2.4 °C 11:01
Max 1hr Hum Rise 4% 1% 10% 10:43
Max 10m Temp Fall 0.3 °C 0.1 °C 1.2 °C 10:35
Max 1hr Temp Fall 0.9 °C 0.3 °C 2.2 °C 10:08
Max 1hr Hum Fall 6% 2% 18% 12:50
Max 10m Wind Speed 9.6 mph 3.7 mph 16.9 mph 13:37
Minimum Feels-like -1.5 °C -8.8 °C 6.4 °C 08:52
Maximum Feels-like 6.1 °C -0.8 °C 15.7 °C 12:28
Mean Feels-like 2.3 °C -5.3 °C 12.6 °C n/a
Air-frost Hrs 132 hrs 0 hrs 24 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 4.0 °C (-0.6) 1.2 °C 8.4 °C
Humidity Range 18% 3% 49%
Pressure Range 8 hPa 2 hPa 19 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 41 (89%) [18%] 0 6.5
Wet Hours 73 (109%) [9.8%] 0 13

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 17 Min < -5.0 °C 1 > 0 hrs 17 Falling Snow 1
> 0.1 mm 16 Min < 0.0 °C 12 > 1 hrs 9 Lying Snow 9
> 0.3 mm 14 Mean < 0.0 °C 7 > 3 hrs 7 Hail 0
> 1.0 mm 12 Mean > 20.0 °C 0 > 5 hrs 1 Thunder 0
> 5.0 mm 3 Max > 25.0 °C 0 > 10 hrs 0 Dense Fog 1
> 10.0 mm 0 Max > 30.0 °C 0 > 25% max poss. 7 Gusts > 30mph 5
> 20.0 mm 0 Ice Days 3 > 95% max poss. 0 Total Events 16

Misc.

Mean rainfall for days with >0.2mm: 3.4 mm
Total snowfall: 17 cm - 37% of the total precipitation
Total lying snow: 36 cm

Graphs and Charts

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