Although softened up and living in the tropical GTA, I grew up deep in Northern Ontario in a hundredish year old log house (with a second floor add-on) and we heated entirely by wood. So as a kid I got pretty used to temperature swings in winter. The wood stove would heat the house up to about 30 degrees, but the crappy insulation and regular -40 temperatures outside would mean that it could very chilly if someone forgot to add wood to the fire in the middle of the night. Water bottles, good blankets (wool sure, but beaver fur is the best I've ever used), flannel pajamas, stockings, and a heavy housecoat and you get through the night fine in cold temperatures.
I've never adapted to heat and humidity though. Can't sleep, and feel miserable in that stuff. Anyone who can get comfy in tropical places has my respect.
My story growing up was not so different than yours. I did eventually adapt to the heat of NM after 9 years and running a marathon in the summer, but never have made peace with humidity. When I moved back to AK, I adapted back to the cold in all of a year... DS is the one I'm really worried about in the heat though. He seems to regard 70F/ 21C as absurdly hot and unbearable. He won't sleep and scratches his skin raw. It might be interesting when we do manage to get to the tropics with him. Maybe we should wait until he can talk.
My mother grew up in a coal warmed house without much heat in her second floor bedroom.
We don't have much humidity here (occationally down to single digit Relative Humidity), but I will smackdown clowns that say "it is a dry heat".
Anything over 40C/105F is beastly, not matter what the humidity.
Standing in 44C/112F feels like your brain will melt/explode at any instant. Even with hair/head covering.
120F/49C sends even me to the basement to cower for the day.
True.
It hit 42C once here in Newfoundland last year, which is absolutely unheard of. Around 24C/75F the Newfies start howling about how abnormally/unbearably hot it is.
I can handle up to 40C, it's not comfortable, but it's fine, but above that gets pretty brutal. I was cooking over a hot stove for hours on that 42C day in a house with no AC, and I got brutal heat stroke.
I was distracted because I needed to get cooking done, and it would have been close to 50C in my kitchen by the end of the day and I lost my ability to think straight.
I was on two crutches at that point and just b-lined without thinking into the ocean. The ocean, which was 300 yards away, down a rickety, steep flight of stairs, across a difficult to traverse pebble beach, on crutches, lol, but that's all I could think of, getting into the water.
But FUUUUCK, the water here, even on a 42C day and having heat stroke, it's so mutherfucking cold I could only make it in up to mid thigh and only for about 45 seconds.
It's like having buckets of ice thrown at you over and over and over again. No one here ever goes into the water. I've never seen it, not in 3 years of summers here.