Whatever you do, don't force yourself to shoot. It's no good.
My friend who shoots a lot of snowboarding- and skirelated stuff once said that when the weather's grey and dull he goes out to enojy the slopes/tracks. And when there's a blue sky it's time to take the moneyshots.
I'm from southern Finland and usually it's not even snowy here during the winter, just darkness, greyness and slosh everywhere. This year it's been better with the snow, but not too many sunny days and light is always the main problem. So I've been pretty much just fooling around with Photoshop and do occasional bandshoots. And helping the aforementioned friend with his snowboard-strobist stuff. Which is actually quite nice as I'm learning new stuff at the same time. And getting steadily pulled away from Pentax...
So, my advice is to enjoy doing something else and shoot when the weather's inspiring enough or there's something else that draws your interest.
I've seen quite a few 365-projets where people force themselves to shoot everyday and then eventually end up having 167 stupid macroshots and 100 ridiculously boring shots of their bored wife/kids/friends/themselves.