During the last heatwave in Philly, about three weeks ago, I was driving in Center City. At one point, it registered 106. I know they are somewhat off at times, but it was damn hot.
Well, it was 100 today in No. Va. and the "feels like" was 108 degrees. Drove through Death Valley in a rent-a-car two years ago and was reeeaaal hot. Here's a pic. It was certainly a dry heat though.