What is a typical dress code for campus interviews on west coast state schools? The question says it all. 

I am shortlisted for a campus interview at a state school in California. I was wondering about the dress code? Should I wear a suit or would it be too much?

EDIT: It's for CSU math position in Northern California.
I'm honestly just guessing here, but I'd think something along the lines of Business Casual or Smart Casual. Both of those are ambiguous, of course, but I think you'd stand out in a suit. 

Of course San Francisco is more formal than LA or Berkeley, but academics in most fields are pretty laid back. If the interview will be long and includes evening events, you might want to have a suit available.