It was HOT HOT HOT! Even for the desert. 110F degrees in the shade at one point, someone mentioned it had reached 115F some time later.
Getting there was a bit of a challenge in and of itself. We were towing a trailer with all of our night gear in it, but we weren't allowed to have anything larger than a purse with us (on our person or approaching the dam). So we had to retrace our steps, find a grocery store, buy a padlock, and lock up the trailer and leave it at a gas station before we could explore the dam. Of course, we also had to backtrack to pick up the trailer. Whats more, we had to take a longer route to our next destination (Barringer Crater/Meteor Crater) than we would if we weren't towing a trailer.