I used to be a "fair weather" commuter myself. I now think that the 30s are a "heat wave". The 20s and lower for me are cold. But I guess it is all relative to what your used to. I actually got a little over heated and had to vent. I kinda like the cold now because the cars have to warm up...so they are even more spaced out. Also many cars are dying in the cold. Only those that are working will make it on the road.
Get out there and Ride! You will love it and get used to the cold!
Peace,