In message , Norman Lynagh
writes
wrote:

The recent cold snap saw level depths of snow in central London of
7-8 cm from the late morning of the 28th until the thaw on the 3rd.
When I wonder did snow last lie in central London in March ? Does one
have to go back to 1947?!

I can remember a substantial amount lying in Central London one evening
in April. It was in the 1970s, most probably the late 1970s. I think it
was quite late in April, the 21st comes to mind but that may be
incorrect. It was quite a widespread event across SE England


Could it be 1981 that you're thinking of? Though perhaps not, as that
affected a lot of the country but I think the SE largely escaped.

I see that in 1975, the same year that had snow on Good Friday, there
was a fair amount of snow around in April too, although in the first
half of the month rather than late on.

1973 is another possibility. Trevor Harley says: "Cold from the 19th
with NE winds and snow at times."

The 1970s seems to have been a decade when there was a lot of cold and
inclement spring weather.
--
John Hall
"Hegel was right when he said that we learn from history
that man can never learn anything from history."
George Bernard Shaw (1856-1950)