August 1958 August 1958 was a fairly wet month with an EWP of 102.9mm and a CET of 15.8 The most notable events of the month were the thunderstorms. On the 10th, storms dumped 31mm in 39 minutes on Waddington, whilst on the 22nd, 25mm fell in 39 minutes at Ringway, 39mm in one hour at Golders Green on north London and 90mm on Brill in Bucks. As a consequence flooding occurred. Here's some data from this month. Aberdeen Mean Max: 17.1 (-0.2) Days with thunder: 2 Glasgow Mean Max: 18.2 (-0.3) Days with thunder: 1 Manchester Mean Max: 19.8 (+0.5) Days with thunder: 7 Birmingham Mean Max: 19.7 (-0.6) Days with thunder: 5 Kew Mean Max: 20.2 (-1.3) Days with thunder: 6 Plymouth Mean Max: 17.9 (-1.1) Days with thunder: 4 Belfast Mean Max: 17.5 (-0.6) Days with thunder: 0