Probably a safe bet with the models :-)

GFS 06 & 12z

Keith,

I wouldn't worry about a green xmas, the coldest snowiest winter ever as far
as I'm concerned 1979 (too young for 1963) , had a very mild spell Dec 25th
to 28th.
The real severe weather kicked in on the 30th December and the rest is
history, as they say

Graham