True. While I have never been to Death Valley, I have been to Big Bend which is a Desert that borders Texas and Mexico on the Rio Grande. I went in July. Evening temps were 100's and day temps were 110-115+. No breeze, just the sun blazing on you - nothing like a 100 degree day elsewhere were there is a breeze and some shade here and there. I was driving the scenic road thru Big Bend National Park where I saw ruins of an old ranch I parked the car and started on the path to the house.....literally within just a short distance I was feeling the effects of the heat and turned back. It really is life threatening in the desert.The only people who say that are the ones who are not in Death Valley (or any other Southwest Desert for that matter).
I’ve spent a lot of time in El Centro, CA, right near where @Chris142 lives.
There is no comparison between the “feels like” temperature and what it is actually like there in the summer.
The “feels like” is based on a set of assumptions, like wind chill, and they fail to take into account that blazing sun that the Central Valley gets. You will die much faster in the desert than you will in DC. It’s just that simple.
So, no, it is not “hotter” where you live than it is in Death Valley.