There's a narrow slice between San Mateo and Santa Clara that has great weather.

Anything North or West is cold and foggy.

South Bay and East Bay pushes 100F for 3 months a year.

And this is before you consider that we now have 1-2 months of smoke season.

South and East Bay only have ~10 days a year of 95+. You make it sound like Texas.

For the south bay it's not 3 months of the year, 100F lasts for like 2-3 weeks at most (actually realistically it's more like 95-100). It's the same for socal. Socal has about 2-3 weeks in the summer where the temps become sweltering.

Even within LA the temperatures vary, the closer you are to the coastline the better the weather.

I know because I grew up in the south bay, I lived in SF for 2 years and lived in LA for 10 years.

What's overall better in socal is that the winters are much more mild. In the south bay the worst you can get is ice in the morning and really cold nights. Socal winters just has a very slightly lower temperature than spring.

Not trying to say NorCal has better weather than Socal. I'm saying NorCal has some of the best weather in the world despite it not having the "perfect" weather that Socal has. The entire CA coast line is afterall still in the mediterranean climate zone.

The best weather really lies between Socal and Norcal: SLO and SB. Their biggest weakness was always the lack of local jobs.