Here in CA September is very much a summer month. However, on the plus side, it usually cools off enough in the evening by Sept. that you don't need your air at night(at least I don't, but I seldom use my air anyway.) We Could eve get a rare 100 degree day or two in October, but it's shortlived.
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK