Most of the United States doesn't have climate that falls within 0..100 F. There are plenty of places that are more like 30..90 F etc. And I don't see how that's any different from, say, 0..30 C.

OTOH, as far as weather goes, C has the nice property that anything below zero is freezing temperature. In any locale where snow and ice is a thing, that's handy to know.