What Temperature Is It?

I'm so friggin' confused right now I can't stand it. Brad's wearing a short sleeve t-shirt over a long sleeve t-short over a short sleeve t-shirt with a hoody and a Fonzie jacket. Michelle's wearing a boob top and nothing else.
The temperature has been messing with me this whole season. Seems like every date ends up with everyone freezing their asses off. Except, of course, Michelle. Must be the evidence I needed to prove she's not human.