Whats the average amount of snowfall each year in California?
I’m afraid your question is far, far too general. California is the most diverse state of the 50 in terms of climate. In the winter time it could be sunny and warm in San Diego and a blizzard with sub-zero temperatures with much colder windchills in the Sierra Nevada. But what you ask, it snows a lot throughout the mountains of the state, both north and south, and not much at all along any of the coast or central valley. Snow has occured in San Francisco on very, very, very rare occasions.