I live in East Valley Phoenix. It gets hot down here too. I've seen 123 on the car thermometer.Yes, just southwest of Kingman. Down I-40 but before you get to the interchange to go to Lake Havasu.
You will know when you are there because your skin will melt. Just kidding, it only got up to 110F in the day and down to a brisk 95F at night when I was in the area.