Even the National Weather Service acknowledges it that it gives us a Wind Chill Factor and everything. I know you people in northern latitudes are laughing, but day before yesterday we were at 87 degrees. 30+ degrees drop is not something our bodies take in stride.
I am already wearing a thick t-shirt inside the house. Gym socks may be involved if I have to step outside.
Buddy Sal F. just posted this meme in Facebook and it is absolutely true: