Monthly Report for December 2017

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 3.3 °C (+0.1) -2.4 °C 9.8 °C 10:57
Maximum Temperature 8.0 °C (+0.2) 2.3 °C 13.7 °C 13:30
Mean Temperature 5.7 °C (+0.1) 0.9 °C 10.7 °C
Minimum Humidity 79% 69% 94% 15:18
Maximum Humidity 94% 83% 98% 11:59
Mean Humidity 88% 75% 96%
Minimum Pressure 1008 hPa 972 hPa 1035 hPa 11:30
Maximum Pressure 1019 hPa 993 hPa 1037 hPa 11:46
Mean Pressure 1013 hPa 982 hPa 1036 hPa
Mean Wind Speed 5.8 mph (+0.7) 2.5 mph 10.9 mph
Maximum Wind Speed 13.8 mph 7.1 mph 25.2 mph 12:07
Maximum Gust 22.4 mph 10.4 mph 43.8 mph 10:46
Mean Wind Direction SW N NNW
Rainfall 88.3 mm (158%) 0.0 mm 18.6 mm
Maximum Hourly Rain 2.3 mm 0.4 mm 4.6 mm 13:19
Maximum 10-min Rain 0.9 mm 0.2 mm 3.0 mm 13:28
Maximum Rain Rate 11 mm/h 0.4 mm/h 36 mm/h 13:23
Minimum Dew Point 1.4 °C -3.6 °C 8.3 °C 12:26
Maximum Dew Point 6.1 °C -0.4 °C 11.4 °C 13:29
Mean Dew Point 3.8 °C -1.6 °C 9.6 °C
Night Minimum (21-09) 3.7 °C -2.4 °C 10.1 °C 09:57
Day Maximum (09-21) 7.6 °C 1.0 °C 13.7 °C 15:11
Max 10m Temp Rise 0.3 °C 0.2 °C 0.7 °C 09:19
Max 1hr Temp Rise 1.1 °C 0.4 °C 2.3 °C 10:28
Max 1hr Hum Rise 5% 1% 11% 14:28
Max 10m Temp Fall 0.4 °C 0.1 °C 1.8 °C 13:09
Max 1hr Temp Fall 1.2 °C 0.1 °C 3.6 °C 13:56
Max 1hr Hum Fall 6% 2% 12% 13:03
Max 10m Wind Speed 10.8 mph 5.0 mph 19.3 mph 11:04
Minimum Feels-like -1.2 °C -7.9 °C 7.3 °C 11:06
Maximum Feels-like 7.6 °C -0.9 °C 14.7 °C 13:24
Mean Feels-like 3.4 °C -3.5 °C 11.7 °C n/a
Air-frost Hrs 30 hrs 0 hrs 11 hrs n/a
Measure Mean / Sum (anomaly) Min Max
Temperature Range 4.7 °C (+0.1) 1.3 °C 10.2 °C
Humidity Range 15% 4% 25%
Pressure Range 11 hPa 1 hPa 32 hPa
Measure Sum (anom.) [% of max] Min Max
Sun Hours 61 (127%) [28%] 0 7.2
Wet Hours 82 (132%) [11%] 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 16 Min < -5.0 °C 0 > 0 hrs 17 Falling Snow 2
> 0.1 mm 15 Min < 0.0 °C 6 > 1 hrs 12 Lying Snow 2
> 0.3 mm 15 Mean < 0.0 °C 0 > 3 hrs 11 Hail 0
> 1.0 mm 13 Mean > 20.0 °C 0 > 5 hrs 4 Thunder 0
> 5.0 mm 6 Max > 25.0 °C 0 > 10 hrs 0 Dense Fog 0
> 10.0 mm 2 Max > 30.0 °C 0 > 25% max poss. 11 Gusts > 30mph 5
> 20.0 mm 0 Ice Days 0 > 95% max poss. 2 Total Events 9

Misc.

Mean rainfall for days with >0.2mm: 5.9 mm
Total snowfall: 7 cm - 8% of the total precipitation
Total lying snow: 5 cm

Graphs and Charts

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