I do like the beginning of Dec. for all of the reasons previously mentioned, but I really thought this past Dec. was too cold to enjoy the pools. I took my son swimming once, but some days I don't even think it hit 70. My co-worker went last year at the beginning of Nov., and had great weather - low to mid 80's. In 2001 in the first week of Dec., it was much warmer, and we could swim everyday, so I think it's just a hit-or-miss type of situation. We're going mid-October this year as we don't want to chance not having pool time again this year, as well as we want to try the Halloween party.