Spoke with someone from the East Coast yesterday and heard you are all suffering from that witch's brew of heat and humidity which I remember so well from my days in Lancaster (Pa.). And which seemed to last longer each year until spring and autumn were just the vaguest of memories.
So thought I'd blow you a little dry California air.
These are actually energy producing windmills along route 10 on the way to Palm Springs. (So they don't cool off Palm Springs which remains in the triple digit temperature range a lot of the year).
They do make for a dramatic landscape though.
They are also close to the famous Cabazon dinosaurs which were featured in PEE WEE'S BIG ADVENTURE, and which add a further bizarro spin to the already other-worldly desert ambiance. The windmills have been featured in a number of films as well.
See also: http://www.cabazondinosaurs.com/