With a blizzard, I can hunker down & sit by the fireplace. Blizzards pass after a short while. I find summer heat to be more debilitating. I can't stand heat and humidity. I don't have AC because usually we only have a couple of weeks out of the summer where it's uncomfortable so I use fans.
I can't imagine how uncomfortable you are Didge. I've been in Cairns in 40 (centigrade) weather and I never want to do it again.
AND, yes, I do believe it is human nature to complain about the heat and cold. It's a way for people to come together and agree upon something. It's usually the conversation starter where I live.
We have one air conditioned room but not the bedrooms. It was 44C here today and the next two days are supposed to be in the vicinity. I used to love the summer but since I got old it doesn't feel comfortable.