One time I decided to take a day trip to the Valley of Fire, not far from there. It was August and 116 degrees. I had it all planned out. Figured out which stops along the way were short enough for me to walk safely in the heat. Brought lots of water and was never to far from the air conditioned car.
I'll be damned if I didn't run into people wearing polo shirts and khakis. Carrying no water or anything at all to drink.
It's like they were writing an instruction manual on how to get heat stroke.