Cumulative probability of permanent snow in Edmonton.

Colby Cosh went to some trouble to create that chart, so I hope you appreciate it. As he explains, that’s the chance that there will be snow on the ground on that day of the year which will not melt until Spring. Not the first day of snow: oh no. That could be some earlier day.

Note to Colby: you know, that doesn’t happen in Vancouver. Permanent rain, though, I have no comment on that.