December 2018 and Review 2018

Weather Report – December 2018 and Review 2018

In Plymtree, apart from the last 7 days, the weather during December was unsettled and generally mild. However, daily rainfall totals were generally not significant with only 5 days when totals exceeded 10mm.The total rainfall I measured for the month was 125.5mm. The average (1981-2010) at Dunkeswell Airfield is 121.2mm. This means that we received 104% of the Dunkeswell average. The wettest day of December was the 18th with 20.0mm. There were 20 rain days (rainfall ≥ 1mm), which compares to an average of 14.9 days for Dunkeswell but only 7 days with no measurable rainfall, with 6 of these during the last 7 days of the month. The highest temperature I recorded during December was 13.5°C on the 2nd. The lowest temperature, -1.7°C was recorded on the 4th. As mentioned before, 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. This is standard World Meteorological Organisation (WMO) practice. It was generally quite a windy month and there were 14 days when a gust of more than 20mph was recorded by Pete Draper at Normans Green. The strongest wind during December occurred during the early hours of the 9th when a gust of 38.7mph was recorded.

My total rainfall for 2018 was 922.8mm, which compares to an average of 1065.3mm for Dunkeswell or 87%. March, November and December were the only months that had rainfall totals above the Dunkeswell average. The drier than average 2018 followed on from drier than average 2015, 2016 and 2017 when I recorded a total of 862.4mm, 806.2mm and 818.4mm respectively or 81%, 76% and 77% of the Dunkeswell average. The highest daily rainfall total was recorded on the 14th March when 33.0mm fell (0900 GMT on 14th to 0900 GMT on 15th). The highest temperature of 2018 was 33.3°C (91.9°F) recorded on the 8th July and the lowest -7.6°C recorded on 28th February when the temperature did not rise above freezing all day. This was the start of the so called “Beast from the East”. The strongest wind recorded by Pete Draper during 2018 was during the evening of the 2nd and the morning of the 4th when a gust of 45.6 mph was recorded on both days.

Mike Ayles