Just after 13.30 yesterday the first rumble of thunder was heard as a series of thunderstorms, with continuous thunder, crossed the area. Torrential rain, with small hail in the first storm, produced 30.2mm of precipitation, the wettest day since 27th March. At its peak the rain was falling at a rate of 290mm/hour. Not surprisingly, with minimal brightness in the morning (0.26 hours), that the maximum was 20.9C, average for late August. The last roll of thunder was heard at 16.02 with intermittent, brief sunshine appearing after 17.00. A mild night followed with the minimum at 14.7C, 3C above the mean for late August.
The weather station of Marlborough, Wiltshire
