You know it's cold when your car is frozen to the garage floor.
I'm not kidding. I went to take the car out the garage after it sat for a week (while we were in Tempe), and it was literally frozen to the floor.
Opened the garage door, got in it, started and put in reverse. No go. Pushed on the gas a bit. It wouldn't move. Checked the parking brake, it wasn't set. Hit the gas again...engine strains, grunts. Still stuck...what the heck?? Now I punch it. Engine revs, car doesn't move. Remember when you were a teenager and you power braked Dad's car? It was exactly like my foot was mashed down on the brakes and I was smashing the gas to the floor simultaneously. One more time. I mashed the gas and the car popped loose, lurching backward. Success!
And it was 21 below zero this morning! Are you freaking kidding me?