I have seen two, and heard of about ten others near here.
The heat seems to bring out rattlers.,, a big one around here has 7 rattles.
The biggest one I ever saw was the summer of 1985,, 12 rattles,, that was a big snake.
I was too dumb to be afraid of it,, I did not kill snakes then.
My neighbor went nuts when I told him about the snake in the driveway.
He ran out,, with a 22 rifle, and killed it.
Pretty much, for the last 2 decades, we have not seen any,, but, the weather was different this year,,,