We had -4 overnight with the wind hitting over 30. That's about -30 chill. Most schools closed. I was surprised. Right now it's nicer with -1 and 15-20 winds for a chill of around -20. I just went out to move my car. I like to do that with no coat just to get my blood moving. Felt great.
First time schools were ever closed in N. Ohio for cold I think was in 94. Two days. It was around -20 with 30 winds for a chill of -50. That was brisk.
I swear the wind chill charts are baloney. When I was in high school, I was waiting for the bus with no hat or gloves. It was dead calm. When I got home, I found it had been -15 and I didn't believe it.