Chance of a white Xmas Eve: 0%!.
Chance of a white Xmas day: 10%!.
Largely fine throughout. Slight risk of a few flurries in the north on high ground on Xmas day.
Remember, a white Xmas is defined by 1 flake of snow falling anywhere in this region, so not everywhere will see the snow that defines a white Xmas if it occurs.