Actually, unless you have experienced it, the desert heat is rather surprising. When Relative Humidity is very low (not the case in August in AZ, however), the "Heat Index" published works in reverse: note that while the temperature was 116`F, it "felt like" less, 113`.
Other than in the comparatively humid summertime here, it is common for the "Feels Like" temperature to be 10% less than actual here.
Instead of the sweat "dripping off of us", it evaporates as quickly as it is produced. Still stinks-up clothing, though! imp