On Friday, August 14, 2015 at 7:29:21 PM UTC+1, Dave wrote:
Official Teignmouth Met Office Station rainfall 24hrs to 10am 14-Aug-15 was 50.1 mm or 1.972 inches in old money.

I can only remember one or two other occasions when 50mm has been exceeded.

Ant Veal has 42.4mm. East Cliff station has 52.6mm. An amazingly wet day!