Having experienced what may have been the all time highest recorded temp last year while helping one of our middle east offices (death valley record is suspect due to equipment issues)...127+
There is a difference between 100 and 127. You walk across the street and you feel like you are going to pass out. I had to stand for a couple minutes waiting for a taxi and the soles of my feet were literally getting burnt through my shoes.
Interestingly, you would get occasional days with high humidity and the temps would cap out around 115 but it was less comfortable to me (neither was comfortable)