Fahrenheit is pretty easy. The key temps are 30, 60, 90: -30 is dangerous, hibernate. 0 is frigid, wear a thick coat and warm pants. 30 is cold, we

Fahrenheit is pretty easy. The key temps are 30, 60, 90: -30 is dangerous, hibernate. 0 is frigid, wear a thick coat and warm pants. 30 is cold, wear a coat. (freezing point of water) 60 is cool, wear clothes. 90 is hot, no clothes. 120 is roasting, God help you. (melting point of humans) Bonus Temps: 72 is room temp. 78 is time to wear shorts. 48 is time to wear shorts in cold regions*. * That is, in any place where people don't understand why finding outlets to plug in electric cars is a problem. Sure, you can't currently plug them in at the store, but your garage has power. What's that you say? Well, of course many people live in apartments and don't have garages, but they can just use the outlets in the parking lot. What, you don't have outlets in your parking lot? Well where do you plug in your gas powered car? You know, for the heater? To warm it up enough to start when it's 30 below? What tropical island do you live on?