I'm from jersey and just got my WRX this fall, I've been told that you DO NOT want to drive in snow or ice in the stock (summer) tires. They all get pretty hard bellow 40-50 degrees. I bought a new set of wheels and snow tires and am storing my stock wheels until the spring. If you can't afford the extra set of wheels, let's be honest it's a lot to spend especially when you just bought a car on top of it, all seasons are a good compromise. So far with all the snow and ice we've gotten this year I'm pretty thankful for the snow tires, it's been handling like a dream, even in the snow.