That’s such a nonsensical statement to make about a state the size of California. Just the 3 main coastal cities have vastly different climates, and that’s not even getting into the highly varied ecosystems found inland. Are you thinking specifically about the LA area?
Might be Fresno area.
Who would ever move to California for the weather, I mean have you looked the 5 day forecast for death valley?
All of California has a pronouced dry summer with low humidity, no thanks.

Sorry, but that’s just not true. California’s coastal areas are hugely impacted by moisture blowing in from the Pacific. San Francisco’s historical average humidity in August is above 60% and the temperature rarely goes about 80.

If it’s rainfall you want, just go a bit further north. Coastal Northern California receives about as much annual precipitation as Seattle. You can find basically any climate you could want in the state – trying to make a blanket statement is pointless.