I admire you, as we we're driving up & back to Tahoe for the Death Ride, a couple of weeks ago, I noticed the temperature as were driving, plus when we refueled in Bishop the heat was very noticable. Back in early June I climbed the 395 side of Monitor in the heat, 90-105, and I was toast after only 10 miles and 3200 ft of climbing. My wife sagged for me too, it sure helped.
Again, congrats on your climb.