Temperature
Mean daily maximum: 7.7 (1.8 above average)
Mean daily minimum: 2.6 (1.6 above average)
Mean temperature: 5.2 (1.7 above average)
Highest daily maximum: 11.8 (8th)
Lowest daily maximum: 2.7 (5th)
Lowest daily minimum: -3.3 (28th)
Highest daily minimum: 9.0 (8th)
Lowest daily grass minimum: -6.7 (28th)
Number of air frosts: 5
Number of ground frosts: 16
Days with max 10.0-14.9: 7
Days with max 5.0-9.9: 21
Days with max 0.0-4.9: 3
Frost duration: 32.9hours
Rainfall
Total fall: 54.7 mm (39% of average)
Wettest day (0900-0900) 12.7 mm (7th)
Rain days (0.2 mm or more): 25
Wet days (1.0 mm or more): 11
Snow
Days with snow or sleet falling: 0
Days more than 50% cover at 0900: 0
Deepest at 0900: 0 cm
Sunshine
Total sunshine: 40.4 hours (103% of average)
Sunniest day: 5.8 hours (29th)
Days with no sun: 11
Other phenomena
Days with thunder heard: 0
Days with hail: 0
Days with fog at 0900: 4
Wind
Mean wind speed: 5.3 mph
Maximum gust: 44 mph (23rd, 26th)
Days with gale: 0
Remarks
A very dry and very mild month but nowhere near as mild as December 2015. The mean temperature was 0.7° higher than the mean temperature for November 2016. It was the second driest December that I have recorded here. The driest was the very cold December of 2010. After the very dull first 3 weeks of the month, the much sunnier last week brought the sunshine total for the month up to very slightly above average. It was the first December in which I have recorded no sleet/snow falling or lying. Even the very mild December of 2015 managed one day with sleet falling.