During my time in NorCal... the rule of thumb was always bring a jacket in the car. The place gets cold as soon as the sun goes out either because of a cloudy day or night time.
Other than that, I love NorCal overall.
If it wasn't for the crazy tax scheme in California, we'd probably move there after wife's work at the university was done.
Heck, I even love dealing with the hippie liberal Chinese IT people over there. They are the craziest, most condescending and yet contradicting people you can find on Earth. Whenever they tell me things like Trans should be able to go to whatever changeroom they feel like. I'd go, "oh... so you agree that it's ok for me to say Taiwan is not China". They'd go batshit crazy saying "Taiwan is China and it's got nothing to do". I was like, hey, that's discrimination. I identify myself as Taiwanese and I should be able to say whatever the fuck I believe in.
And that'd usually crash their brain as they aren't able to process that logic and it goes into infinite loop.