I've seen worse that the weather we're having--but that's because I grew up in Wisconsin. We had a week when I was in college, a whole WEEK, where the daytime highs were 20 below. That's thermometer, not windchill. Overnight was about -35.
That would have been `83 because my 20th birthday landed in the stretch--that was back when 18 was legal like it should be--and I still managed to walk to the bars. And back somehow, though I don't really remember how. Which of course is part of why I quit.