Having lived in both Southern California and Florida (one right after the other, actually), I could not agree more. I loved living in SoCal, and HATED Florida. I do kind of fundamentally disagree with the premise that nice weather is everywhere. I think that most places in the USA have nice weather sometimes, but you have to look at the proportion of the time the weather is nice, tolerable, or miserable. (This is a subjective determination; I find snowy weather completely miserable, but some people love it.)
As for the poster's original question: if weather is a big deal to you, you should consider it a relatively big factor in your decision. It can make a difference in how you perform academically. I transferred from an east coast college to a west coast college, and found that both my mood and my grades went up in the warmer climate. It was also just generally a better experience overall, and that's not something to discount. But then again, neither is $60,000 plus interest.
So uh...good luck with that!