When I was growing up my dad was a letter carrier with a walking route and we could not turn on the A/C in our house (a single window unit--woefully inadequate!) until it hit 100 degrees...none of this heat index business back then! ;D
As kids, we would sleep under an attic fan at night and fall asleep about 4am when the damp sheets would cool us down enough to pass out!!
Hot is hot! A few degrees either way doesn't make a difference. Patcat, its so hot my eyes started watering.
When I was growing up, we slept in the basement on hot nights. We spent many days downstairs too. I had my private little space under the stairs where I'd sit and read Nancy Drew books. I remember my mother making popsicles with Kool-Aid.