How did it get to be summer?

For some reason here in Arizona we’ve been having the strangest winter. Usually in February we can count on needing at least a light jacket. But I don’t think I’ve seen it hit 85F this soon.
So far March seems to be looking at more of the same. The National Weather Service says the earliest 100-degree day is March 26, 1988. We’ll see what happens this year.
Didn’t they used to have a name for this? I don’t think “climate change” quite covers the direction we’re going.