Hello All front AZ.
I've been to Phoenix and Tucson in the summer. Not someplace I want to be for too long during that time of the year. Northern Arizona is much nicer weatherwise, like the Kaibab forest area.
once you get used to it...
you walk around in a parka and beanie in "perfect" 90 degree weather.
Speaking of parkas, now that I think about it, I went to Tucson in the winter once specifically to ski at Mt. Lemmon Ski Valley. Now who thinks about going to Tucson to ski? That was years ago but that place is still in business I think.