Does California have warm or cold climate?

Every year, millions of tourists visit California. California is known for its beautiful scenery, warm climate and
excellent food. There are twenty national parks in California. They are visited by over thirty million people every year. Many world-famous museums are located there too. The state is divided into two parts, called Northern California and Southern California. San Francisco is located in Northern California. It is surrounded by water on three sides and is a city with beautiful bay and several bridges. Its streets are always filled with tourists. There is an area in south of San Francisco that is famous for its computer industries; it is called Silicon Valley. Los Angeles, Hollywood and Disneyland are found in Southern California. Southern California is known for its desert areas, which are sometimes next to snowcapped mountains. Southern California is one of the few places in the world where you can ski in the morning and surf in the afternoon.
1.Does California have warm or cold climate ?
2.What is San Francisco surrounded by ?
3.Is silicon valley famous for its computer industries?
4.Where can you find disneyland ?