As you may know, I have trouble adjusting to the warm temperatures. Below is Gush Party's Summer Heat Index 2008:

70° - Smiling
75° - Sex still enjoyable
80° - Underwear: moist
85° - Hot acceptable as adjective, noun, and verb
90° - Fists everywhere
95° - Class action lawsuit against C+C Music Factory
100° - Underwear: protected rainforest