During any given winter month, you'll need a muffler, shorts, or an umbrella. And in the spring, you'll get a little bit of everything. This is another good step to take to establish California residency for tuition purposes. See Emergency preparedness for information on earthquakes and Driver's licenses for driver's licenses or California ID information. Its main goal is to foster a welcoming community for all non-Californians.
Members have the opportunity to meet other interesting nonresidents and alumni.
Don't be intimidated by all the Californians surrounding you. With Berkeley's large diverse population, you'll make friends quickly. Also, don't forget to bring a good umbrella because when it rains, it pours. A lot of times since I moved to California I've felt that people on the West Coast sugar coat things. It can be depressing not to share this view and be excluded because you're not perky all the time.