Sometimes it also depends on mardi gras holidays- the southern states of al, la, and ms get time off from school - monday and fat tuesday...feb 20th, 2007 is fat tuesday (or mardi gras day) next year.Hope this help!
That is when we went 5 years ago and it was sooooooo crowded, it was the first week of Florida's spring break and I did not know that. I was soooo upset b/c we had no kids yet and could have gone at any time of the year but I thought that would be the best with little crowds and not hot yet, I was wrong on both accounts!