Well, seeing as I live in Jersey, Arizona was much hotter.
However, I really don't think I would mind living out there too much, as long as I had A/C in the house and didn't have to spend very long amounts of time outside. It's so dry that it's not as uncomfortable as, say, Jersey when we get to be 90 degrees with like 50% humidity. As long as you had the A/C on for sleeping, it wasn't all that bad.