We used to live out in Huachuca, Arizona and one summer it was really hot. They show on the weather channel "Hottest Day Ever in Huachuca, Arizona" and it will say 135 in Huachuca, Arizona this day in 1981.
I remember that day well. We were outside just a short time but we saw a rattlesnake suddenly flame up. Then we saw two more. Our house was wood and it really scared us.
After the eighth rattlesnake flame-up we finally caught a few others and started a backfire. It was illegal, I know, but it saved our home.