This is the first winter I am trying to ride through. It also has been one of the coldest and snowiest Decembers around here in quite a while, but thanks to new tires I am able to get through it. So far the coldest I have ridden in is -2*F, tomorrow is supposed to be -6*F. I am planning on riding, but I make no promises. I have a short (5 mile) commute and usually the hands might get a little cold during the middle part of the ride, but by the time I get finished they warm up. Right now the only thing I am struggling with is something to cover my nose/cheeks without fogging up my glasses.