Malkin, where do you live? Don't you have AC? Evaporative cooling?
In AZ, people used to hang sheets out on their porches and blow a fan on the sheets, to sleep in the summer, before the 50's, when AC become available. Women and children were sent to San Diego for the summer!
Dogmama, I would not be riding in AZ at this time of year. I might get up and ride at 4 AM now, but I remember walking at 5 AM in the summer and it was already unbearable. I would think my riding season would be the end of October through March.
It was about 82 when we rode on Saturday, but the combination of bright sunshine, eating lunch in the sun, and hard climbing had me cursing the heat. I do acclimate more quickly than in the past, but I obviously need to do this still, this year.