On Sunday, 19 February 2017 13:31:05 UTC, Graham Easterling wrote:

When I was living in Wootton Bassett, Wilts (it wasn't royal then) we had a blizzard on 26th April 1982. My maximum temperature that day was 2.0C. There was overnight easterly gale with a general cover of 4-6" by dawn, but with significant drifting. We lost electricity for several hours. There was a steady thaw in the afternoon, but according to my weather diary it was "Easily the heaviest snowfall of the year". It remained mainly as rain along the Thames valley just to the north (around Lechlade) Just a small altitude difference had a big impact.

A minor point, but wasn't that April 1981? IIRC April 1982 didn't experience any snow in that part of the world...