Weather Report – May and Spring 2020
May was an exceptionally dry month and it was also very sunny and often very warm. Nearly all the rain that fell occurred in the first 5 days of the month. Then for the remainder of the month, apart from a very insignificant amount overnight on the 21st – 22nd, there was no measurable rainfall. The total rainfall I measured for the month was just 9.8mm. The average (1981-2010) at Dunkeswell Airfield is 72.3mm. This means that we received only 14% of the Dunkeswell average. The total spring (Mar, Apr and May) rainfall I recorded was only 93.0mm which compares to an average of 227.2mm at Dunkeswell or just 41% of average. If you take off the rainfall that occurred in the first 15 days of March (51.4mm) then this gives a 3 month total of just 41.6mm or only 18% of the Dunkeswell average. The wettest day of May was the 5th with just 4.5mm. However, as this rainfall event spanned 2 rain days (0900 to 0900 GMT) the 24 hour total was in fact 8.0mm. There were only 3 rain days (rainfall ≥ 1mm), which compares to an average of 11.3 days for Dunkeswell. The highest temperature I recorded during May was 28.7°C on the 27th. The lowest temperature 0.5°C was recorded on the 12th, with a slight ground frost. This occurred during a brief cold spell which began on the 10th when the temperature fell from a maximum of 22.6°C at midday to just 11.5°C at 1800BST. The strongest wind occurred during the late afternoon of the 10th when a gust of 34.9mph was recorded by Pete Draper at Normans Green.