Thanks Pete, that chart is just what I was looking for. It looks to me like there where 17 years out of 35 that the high actually happened between May and August. That is only about a 50% chance that you are going to have a weather market at some point in the summer to lock in a profit. The last 2 years have been perfect to lock some in on a summer weather rally but it sure doesn't look like you can count on it every year.