This is a good question. My home doesn't have Central Air in it either. I think that before I move back into my home, I am going to have an Air Conditioner put in my room. It seems like Central Air really isn't a big thing in the Bay Area. In the South; however, Central Air is everywhere.
Why does San Francisco have some of the least air conditioned homes in the nation? (msn.com)​
Why does San Francisco have some of the least air conditioned homes in the nation? (msn.com)​