Ken, I observed 3 days with snow lying in Yorkshire in October between 1992 and 2016. Sorry, don't have access to years, but all were 30 or 31st October, 2 in Penistone and 1 in Langtoft, each event was fairly widespread.
This is our third Autumn here and we have had a fall by the end of the first week in November each year so far.

DM. 740m. La Moratille. Correze. France.