The weather is one of the things I miss most about California. Of course I lived in NorCal, had more rain and cooler weather, but I like that. And heavy jacket needed to go to some beaches in summer, lol.
Yes, for me it is too cold in NorCal and generally all year round. I always keep a sweat shirt & sweat pants in my car, in case it gets cool at night, but usually just wear shorts & T-shirt most of the year.