It’s all relative to what your body is accustomed to. You would not be able to function the way I can at 90 degrees and 90% humidity because I’ve been doing it for years. Just as I cannot function in your extreme cold weather the way you can. It’s not a sign of weakness or being thin-skinned. It’s just the physics of the human body.
The snowbird Canadians will be out in their swimsuits at the beach today..
I have worked this event (volunteer) since the early 80's for a couple decades as it's pretty cool, everything to a few rainouts to freakin' blizzards. I moved down to the Ft. Pierce area in the 70's - I lasted three weeks! Small lizards jumping on my head, sweaty all the time, ugh.