I've been to Death Valley...luckily in the fall & NOT the summer. I lived in the Ca Mojave desert for about 17 years & there were days in the summer that it would get up to 105F. Never forget the summer we moved into our brand new house. I just had knee reconstruction before it was done arthroscopically. Huge full leg cast & the central air unit went out. It was 100F inside the house where I was stuck unable to drive & on crutches. Knew no one in the neighborhood & many houses were still vacant. Finally talked the builder into moving the AC unit from the unsold house next door to ours & getting it connected. My leg got swollen, went back to the surgeon & he opened the cast to make sure it wasn't infected. Then squirted bedidine onto my leg & closed the cast. The bad heat caused the bedidine to burn my skin..so 2 weeks later when they changed the cast, they found all my skin chemically burnt under the cast...2 more weeks with that cast....how miserable. I don't do well in heat either