I am fully acclimatized to the Phoenix (and Arizona in general) weather. Yesterday, I thought nothing about pulling on shorts and going for a 4 mile run at lunch time (95F when I left).
Additionally, yesterday, it was 100F at the high. The lowest temperature this June (from my memory), and it felt very comfortable.
Of course today it will be 108, tomorrow 113, and Friday 117 or more.
Yes, I am sick.