Unless there is humidity then it don't matter. 140's in Kuwait baked my ass buy prefer it to 90 degrees and 100% humidity Florida had. Humidity is the real killer. Still sucks no matter what. I hate heat!
Yeah this is the popular theory but what folks don't consider is that this kind of heat (dry 115+ type heat) will literally kill cars. They're a common sight here...like carcasses on the side of the road and freeway. Then consider that everything outside is too hot touch, including your car and everything in it. You can't leave anything in your car ever. Walking in a parking lot for even just 100 feet or so is like being in an oven and you can't breathe. Your kids can't play outside unless they're wet in a pool.
The dryer, extreme heat generally runs from June until mid-July. Then the monsoons come and it isn't a dry heat anymore(contrary to belief). The moisture builds up to the East (of Phoenix) all day long, and the humidity climbs....yet most of the time there is no pay off with rain. We usually get punched in the face with huge dust storms instead. Giant walls of dirt with humidity and 110+ degree heat.
Humans weren't meant to live in the Southwestern desert in summertime. Same thing as Antarctica...just different extremes.
I've spent some time in SW Missouri(lived there for 1 year) and Western Tennessee(have family there) during the summer and the 85-90 degree heat and extreme humidity is stifling...i get that, but you really haven't experienced an extreme summer unless you've lived in parts of Arizona, New Mexico, California and Nevada.
I've lived here 45 years. My kids are teenagers now. I'm gettin the fuck outta here soon. I want seasons and some weather variety.