Not sure about BeerLover87, but I know in our area (which averaged over 55 days below zero this year, some well below -30) my basement's been pretty stable in the 60's. It did cool down a little farther than usual in the corners, but I attribute it more to a deeper frost line this year than previous ones. LOTS of broken water mains this year, a couple townships have asked homes to keep water running to keep the pipes from freezing up. Heating bill's been higher than I'd like too - I feel sorry for all those folks that deal with propane!
Now that I'm getting a better handle on ambient basement temps (and humidity levels) I think I'm going to start planning beers around seasons. Just need to get some data from summer...