In reply to Redsetter:
Heating is gas using a forced air system, the houses are well insulated.
The old Cliche of "it's a dry cold" is true and so long as you are well wrapped up it's not that bad. The term "windchill" is relative here as a light breeze will make alot of difference but it don't Blow like Scotland!
The sun shines all day which makes it very nice when you look out, but the cold does hit you when you go out the door.
-30 makes it difficult to do much but -25 in the sun is really ok provided there is no wind.
You need to plug the car in if it is outside overnight and the transmission oil gets a little thick.