[ThePadawan]

The probabilities in Germany are around 12.5% and around 40% in Switzerland itself [0].

To live anywhere where to quote OP "it [would be] unusual not to have snow for Christmas and New Year" would basically mean living in a skiable country itself, so I did do a lot of assuming there.

But then I don't ski. I wouldn't know if skiers take vacations around the world to see different snow.

[0] https://de.wikipedia.org/wiki/Wei%C3%9Fe_Weihnachten_(Wetter...