You can think of F as a “% hot” measurement for weather.
0 = no heat: getting dangerously cold for humans.
50 = half hot, half cold: wear long pants and a jacket.
75 = three quarters hot, getting close to t shirt weather.
100= fully hot: getting dangerous for humans.
Yes you can go over or under, but you can consider those to be extreme weather (120% hot!)
Acclimatization is a whole thing. I remember thinking 65F / 18C was cold once upon a time, then I moved north and now only bother putting on a jacket if it's below 40F / 5C or so (but now I start seriously suffering above 85F / 30 C where that used to be my ideal temp).
People who pretend certain temps are objectively not that cold or hot have never moved from one climate to another, I think. The person you replied to must be from a hot area.
Yep. I lived in the middle East and SE Asia combined for around 12 years, and while occasionally it was too much, in general I loved the heat and rarely said "its too hot", I moved back to the UK 3 years ago, in June. Hated it, was cold all the time. Now when it's more than 25c / 77F on a calm and clear day I'm boiling and can't sleep at night (barely anyone in the UK has ac at home).
It really depends on what your body is acclimated to. When I lived in Texas it felt a little too cool to be t-shirt weather. Now that I've been living in Seattle for years, it's safely within the realm of t-shirt weather.
Fahrenheit is designed for humans. Celsius is in love with distilled water at sea level. Kelvin and Rankine are actually useful in math, science, and engineering.
My wife told me to go look at the thermometer outside and the needle was pointing to 0. She asked "what temperature is it?" I said, "uh.. there isn't one."
Is 0% hot no extra heat, like perfect room temp or is it zero heat, the death of all life?
What does 100% hot mean?
You arranged it for yourself to make sense of it, but no need to rationalise it. It's only good, cause you're used to it, or doesn't "feel more human" than Celsius.
I've been in a sauna with 100°C ( what's that? 250°F?) It's doable, but that's probably my personal max. So 100°C air temp is now 100%? Mmmh doesn't really work that great.
All in all, temperature unit is just data points, the interpretation is individual. Fahrenheit is not "more suitable for humans" than any other unit.
Having used a lot of Celsius and metric in college sciences, they don’t bother me so much. But when it comes to certain applications, I’m more used to farenheight. For example temperature as it relates to human comfort.
Like I know 35 c is hot, and anything in the 40+ is miserable. But I also know I prefer temperatures to be in the 72-75 range for optimum comfort and thus have to do a bit of math if I need that in Celsius.
Fahrenheit is nice for the ten degree ranges when talking. "Tomorrow it will be in the 70s". The entire range of the 70-79 is fairly nice and similar. Every ten degree range is meaningful and different. "Tomorrow it's in the 90s! :("