When I get cold.
Honestly, I can not tell the difference between 100 or 110.
Eighty degrees feels very comfortable, 60 is cool, 50 is chilly.
By the time it hits 40, I am cool, at 30 , it is cold........but I can't tell you the
difference between 30 and 20.
I am married to a " weather watcher".........but I only know if I am hot, comfortable or cold. Everything else, is unnoticed.
The bedroom fan runs year round, I am just accustomed to its noise. Once, I do turn on the AC or the Heater, it is hard to turn it off again, so I do intentionally delay either.
It is easier for me to deal with cold, than with extreme heat, which just "zaps" my energy.