I know as a kid we went in both Feb and March, but the crowds then probably don't appy. The weather has always been great in Feb to me, a girl from NE. I will take the 50-60degree nights and the 70s days instead of the minus 0 temps in my town at that time in Feb! I guess it is all relative. We wore sweaters and light jackets at night, shorts and shortsleeves most days, and swam in the pools, no prob. The parks were generally not crowded. Walked onto many big rides-splash mtn, pirates, over and over until 11 am with no wait one day. We prefer to get out of the cold in the north for feb vacation with minimal crowds, rather than busy crazy days. I can't speak about March, as I haven't been there in recent years at that time. But again, we love late jan, early feb! Great deals too, pricewise!