For everyone, it’s different.
Take my folks who live in Florida. If the temperatures dip into the fifties, they’re ready to call it a national emergency.
Here in Vermont, however, we’re in for a real cold snap. The high temp over the next few days is expected to top out at 5°, with the wind chill making it feel like well below zero. Overnight, it should dip to about 20 below.
Will I go out to ski? Probably, at least for a while. There are ways to gear up to make it a bit more tolerable. I have boot heaters in my ski boots, Boot Gloves to wear over them, a face mask (as ugly as that is), and lots of warm base layers to pile on under my ski pants and jacket. I’ll probably take more breaks than I would under ordinary circumstances (2 runs, break, 2 runs, break).
When it comes to cold temps, looking good takes a back seat. I’m all about keeping warm. I won’t be pretty, but I’ll be out there.