It's a good point about living in a hot climate often being associated with living a happy life. Although to what I've seen, there isn't much evidence for such a correlation.
I grew up in northern Sweden. You're definitely miserable even when dressed perfectly in -15°C!
You're right that once it gets over +30°C or so, you'll be miserable whatever you wear. But there is a large temperature range below that that is wonderful. The Bay Area is almost always in that zone.
It's currently above freezing, dark, and wet here in Norway about 40 km south of Oslo. I'd be a lot more comfortable if it were -15 C. The sun would probably shine for more of the day instead of being hidden behind dark clouds and it would be dry; going for a walk would be much more enjoyable.
Well I feel cold in winter sometimes even with a coat on. It hurts when I go outside, so I stay inside more, but if I stay inside too much, it hurts.
The point about hot environments is true, but people are not anxious and your body rarely hurts. They are lazy and their minds blank out. It is often too hot to do anything except try to scam anxious northerners and move away from mosquitos.
