December 2015 and Review 2015

Weather Report – December 2015 and Review 2015

In Plymtree December continued where November left off, mild with a south-westerly flow bringing cloudy conditions, unsettled and often windy weather. Like November, although there was rainfall on many days during the month amounts were generally not large. There were only 2 days when totals exceeded 10mm.The total rainfall I measured for the month was 109.0mm. The average (1981-2010) at Dunkeswell Airfield is 121.2mm. This means that we received 90% of the Dunkeswell average. Again like November although South West England and South Wales as a whole received above average rainfall (151%), because the totals were greater over South Wales, our total was below average. The wettest day of December was the 30th with 28.0mm. There were 19 rain days (rainfall ≥ 1mm), which compares to an average of 14.9 days for Dunkeswell, and only 7 days with no measurable rainfall. The highest temperature I recorded during December was 14.2°C on the 16th. The lowest temperature, 0.4°C was recorded on the 9th. There were no air frosts during the month. It was interesting to note that the maximum temperature (13.8°C) attributed to the 18th actually occurred in the early hours of the 19th (0230). As mentioned last month, all daily measurements are made at 0900GMT each day and the figures attributed to the previous day apart from minimum temperatures which are recorded against the date they are read. The strongest wind during December occurred in the late evening of the 19th when a gust of 45.0mph was recorded by Pete Draper at Normans Green.

My total rainfall for 2015 was 862.4mm, which compares to an average of 1065.3mm for Dunkeswell or 81%. July and August were the only months that had rainfall totals above the Dunkeswell average. In 2014 I recorded a total of 1199.9mm or 113% of the Dunkeswell average. The highest daily rainfall total was recorded on the 13th August when 41.0mm fell. The highest temperature of 2015 was 28.9°C recorded on the 30th June and the lowest -6.8°C recorded on 23rd January. The strongest wind recorded by Pete Draper during 2015 was during the early hours of the 14th January when a gust of 56.4mph occurred. My maximum wind speed was 29.8mph on 31st March.

[The difference arises because my wind speed is measured at a height of about 6' in the shelter of my back garden and Pete’s on the roof of his house and exposed to the elements].

Mike Ayles