If you dropped your key in the snow and wiped it off and ran the car but now the key will not turn is it frozen inside?

Probably if you didn't wipe it off well. Try this, take an toilet paper tube or paper towel tube and place one end over the ignition key cylinder, (you may have to remove any rings or other keys first) breathe into the other end allowing you hot breath to defrost the lock. After a few minutes try to work it. This works on exterior locks pretty good, and may for you. Post your results.

Thanks for the tip, Bclear. I ran an industrial extension cord (25 feet), and the toilet paper tube out to the car with my hair dryer. It worked! (ran the dryer over the key in the ignition so the key would get hot)thank you

Good thinking! Your Welcome.