I hate IRL snow. It only snowed for 1 day in Tokyo last year. I hope it's the same or less (no snow) this year.
If I remember right, it only snowed for 1 day in November in my game - just the day after Harvest Festival (November 29). The weather is a bit random though, so you may get more snow in your game than I did.
I had the announcement for snow on the message board today - I started my town with two weeks behind the current date to have a chance at the harvest furnitures, which I really like. I really look forward to the snow!