I got my first experience of such low temperatures traveling across the Mid-West on Amtrak. I stretched my legs from the sleeper car one very cold and crisp December morning in Ohio. I'd never felt anything that cold before, so it was quite an experience.

When I arrived in Nebraska (January 1st!) I remember seeing a bank sign which proclaimed it was a balmy 8 degrees outside! I soon learned that walking three blocks to pick up my car wasn't worth the couple of dollars taxi fare it saved.

The coldest I experienced while out there was around -20 F. Despite the much lower temperatures though, I found the Mid-West cold to be much dryer and more invigorating than the miserable damp English winters.
I'd still prefer a nice comfortable 70 degrees though! [Linked Image]