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.