Well, I had planned to post this a long time ago, but the holidays kept getting in the way. If you live in a climate where it snows, it's still applicable. Since we do not get (much) snow where we live, we made "pretend snow" from packing peanuts (free with holiday shipments!). I let S play with it in the sensory tub. He loved throwing it up in the air and shouting, "It's snowing!"
We also made a snow scene on black paper. I put a dabs of glue on the paper and S placed pieces of "snow" on top.
Another snow related activity we did was to use white Floam to make a snowman.
I had planned to also do a felt snowman that S could dress, but never got around to it. I have a new idea for a felt board as ours has been enjoyed too many times. I'll keep you posted...