So most of the relevant temperature variation — the vast differences throughout all of spring, summer, and fall—are restricted to only 23 integers. (I could use decimals, if I wanted to sound like a robot.)
Indeed, on human scales it’s a lot better. The same problem with the metric system. It’s designed to work well mathematically, not humanistically.
And to those who say it’s just because I’m not used to it, not so: I was in the Army for five years where that’s all that is used.
If you want to make a space probe, sure go metric and Celsius and what have you. Want to give me a meaningful temperature or distance, use Fahrenheit and feet.