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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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Summary for January 2010
A very cold and often quite wet month with some snowfall. Two days with snow falling (6th & 10th). Very wet and quite windy on the 16th with 38.9 mm of rain. A station record 'grass' minimum of -15.8°C (on top of snow) on the 7th. Very clear skies on the 30th led to an exceptionally sunny January day with 8.8 hours of sunshine, which is 96% of the total possible. Mean Max: 4.9ºC (-3.5ºC)* Mean Min: -1.1ºC (-3.8ºC) Mean: 1.9ºC (-3.7ºC) High Max: 10.7ºC 16th Low Max: -0.7ºC 7th High Min: 7.7ºC 22nd Low Min: -10.7ºC 7th Grass Min: -15.8ºC 7th Rain Total (gauge): 102.8 mm (118%) Rain Total (tipping bucket): 88.1 mm Rain Days 0.2 mm: 9 Days Rain Days 1.0 mm: 7 Days Max 24 hrs: 38.9 mm 16th Days without any rain: 22 Air Frost: 16 Days Ground Frost: 24 Days Snow Falling: 2 Days Snow (50%) @ 9am: 6 Days Thunder Heard: 0 Days Hail 5 mm: 0 Days Hail 5 mm: 0 Days Fog @ 9am: 1 Day Total Monthly Sunshine: 88.5 Hours Most Sunshine in a Day: 08h:45m 30th Average Daily Sunshine: 02h:51m Sunless Days: 4 Days Cloudless Days: 8 Days Total Possible Sunshine: 264h:53m Percentage of Total Sun: 34% Mean Soil Temp @ 30 cm: 2.6ºC Mean Soil Temp @ 100 cm: 4.8ºC Mean Wind: 3.4 mph Max Gust: 37 mph 16th Mean Cloud Cover: 73% Mean RH @ 9am: 88% Rain Duration 0.1mm/hour: 50.0 Hours Frost Duration: 238.3 Hours Max Frost Duration in a Day: 24.0 Hours 7th Mean Pressu 1015.5 hPa (+0.2 hPa) Max Pressu 1041.6 hPa 26th Min Pressu 992.1 hPa 29th Max Dewpoint: 9.2ºC 16th Min Dewpoint: -13.0ºC 7th Mean Dewpoint: -0.7ºC Max Humidity: 93% 15th Min Humidity: 61% 30th Mean Humidity: 86% (-0) *Anomalies are sort of experimental. _____________________ Nick Otter Valley, Devon 83 m amsl http://www.ottervalley.co.uk |
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