I agree with everyone. We love May and October. We have vacationed in August, September, October, November, December, February, April and May. We have decided to visit June 9-12 b/c of last minute surprise for our boys. They adore Star Wars and we want to hit the last Star Wars weekend. I am not worried. I love it when it rains because the parks are empty and it feels good when you are hot. I personally do not like to go in the cold weather months (Nov-February) because of the sickness issue. My kids usually are sick or end up sick and people are hacking all over the park we all end up sick after the vacation. Just go when you feel like it. One time we went in late May for nine days and guess what? It didn't rain the whole time! But the temps were in the high 90's all week. We've also been in August when it was rainy/misty and cool and the parks were somewhat empty. It's the luck of the draw. Go when you want to and have a wonderful time!