I've never heard of windchill in Florida, wow! This has been an exceptionally cold winter for much of North America. I live in Winnipeg, Manitoba and even for here this winter is getting out of hand. Our average daily temperature is around -40. It's been like this since the first week of December and will likely continue until at least the end of March. On new year's eve it was -51C here which is about -60 Fahrenheit. Our family did not go out that day, way too cold even for us.