I live in Phoenix and am trying to build my miles in preparation for brevets. My only option is to get up early and get in the miles before it gets too warm. Weekend before last, I was on the road at 0430 and off at noon. I wanted my miles to be higher than the temps but failed by just a couple of miles. Yesterday, I was on the road by 0400 and it was very, very nice out. By 11, I was well over 100 miles so I called it a day. The humidity was about 35% for what it's worth.

During this year's Ragbrai, the heat and humidity was tough but not overbearing. I managed to stay hydrated and only had issues on the very first day. I treated myself to a massage and that seemed to help tremendously.

I don't mind heat and humidity but all things considered, I'd rather tackle them early in the day and get off the road by noon. That keeps the fun factor in the right range for me.