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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 December 2018
Colder, drier and duller than normal. Very harsh frost (for here) on the 5th and an unusually high number of air and ground frosts, though most were slight. No rain recorded until the 18th and a high amount of sunless days. Coldest January since 2011 (4.6C); driest since recording began (2005); dullest since 2007 (63.6 hours). Mean Max: 8.8ºC Mean Min: 2.3ºC Mean: 5.6ºC High Max: 12.9ºC 13th Low Max: 3.6ºC 5th High Min: 9.8ºC 13th Low Min: -4.7ºC 5th Grass Min: -6.7ºC 31st Days 10°C 11 Days Days 5°C 30 Days Nights 5°C 9 Days Nights 0°C 19 Days Rain Total: 44.6 mm Rain Days 0.2 mm: 10 Days Rain Days 1.0 mm: 8 Days Max 24 hrs: 10.2 mm 18th Days without any rain: 21 Air Frost: 12 Days Grass Frost: 20 Days Snow Falling: 2 Days Snow (50%) @ 9am: 0 Days Thunder Heard: 0 Days Hail 5 mm: 1 Day Hail 5 mm: 0 Day Fog @ 9am: 1 Day Total Monthly Sunshine: 67.0 Hours Most Sunshine in a Day: 8.0 Hours 17th Average Daily Sunshine: 2.2 Hours Sunless Days: 8 Days Cloudless Days: 2 Days Total Possible Sunshine: 264.9 Hours Percentage of Total Sun: 25% Average Sunny Interval: 16.0 mins Ave 10 Min Wind 39 mph: 0.00 Days Calm: 8.76 Days 28% Mean Wind: 3.0 mph Max Gust: 41 mph 27th Max Dewpoint: 10.3ºC 16th Min Dewpoint: -5.6ºC 5th Mean Dewpoint: 3.6ºC Max Humidity: 100% several days Min Humidity: 52% 17th Mean Humidity: 88% -- Nick Gardner Otter Valley, Devon 20 m amsl http://www.ottervalleyweather.me.uk |
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