low 20’s is a heatwave in some states mid winter-
Exactly. I’m in southern New England so we usually get into the 20s at night. I would say on average. However, there’s plenty of days in the winter where the high may only get into the 20s, but those are usually for a short period of time, a few days at most. Places like Minnesota, Maine, etc. Can see that for probably a week or more