No need to convert? What do you mean? Are you saying if I just intrinsically knew Celsius for weather I wouldn’t have to convert Celsius? Because that’s obviously true, but I’m just explaining I don’t intrinsically know Celsius in that way.

Also, even if I did get to know Celsius really well, I would still have to convert it every time someone uses Fahrenheit, which is pretty much all the time in the US.

Lastly, what do you mean, saying 0 C is “dangerously cold” and suggesting that below that temp is outside of the bounds of what is used for weather? Where I live the temperature stays below 0 C for long periods of time, never going above it.

[–] Ultraviolet@lemmy.world 0 points 1 year ago* (last edited 1 year ago)

If you know those two numbers, 0 and 40, you can get a general idea of what the temperature is in Celsius without doing any math. If you hear 20, you know that's a moderate temperature because it's right in between. If you hear 30, you know that's fairly warm. If you hear 10, you know that's chilly but not freezing. Below 0 or above 40 are extreme cold and extreme heat, respectively.