And -5 farenheit is.. just a bit colder than fuck? I understand what temperatures I start feeling cold perfectly well in Celsius, I know roughly when I'll need a jacket, when I'll need a hat and scarf... Farenheit tells me nothing because I don't know about it. Sure, 0 is very cold, but where is "cold enough to wear a jacket"? It's most likely never going to reach 0°F where I live, and it won't reach 100°F outside of very rare summer days... Beyond those extremes it's not useful to me because I don't know it.