Cold? in Phoenix? I am in Tucson...cooler yet than Phoenix and tomo will be 74 here. It has been a bit cooler the highs only in the 60's. But that is pretty nice weather.
I have been to both Florida and Arizona (where I am now) and frankly I do not care for Florida at all. To me it is one huge strip mall peppered liberally with strip joints, Cigarette outlets, tourist tchochke stores and a rather sad vibe. Worse yet it believes it's own Marketing press.
Now there are some nicer cities actually Orlando being one. But for my money Arizona is head and shoulders above the fabled Florida.
I remember one winter many years ago that I had gone to Florida to get out of the cold of Indiana and ended up buying a sweatshirt in Key West...the cold front had gone that far south. I finally caught a plane to Guatemala and then Belize.
So you can be cold almost anywhere.
