Hey wally, you should make a longer visit to Minnesota in say... February! It will make you appreciate the southwestern heat a whole lot more!
Last April I was in Phoenix during spring break. When I left Minneapolis, the temperature was in the 70s. I left Phoenix less than a week later, when I got on the plane at 7:30 it was hotter than 90 degrees and when I stepped off the plane in Minneapolis it was a freakin 32 degrees... in April!
Oh and another thing I learned from that trip... US Airways sucks! Delta FTW!