Also see this for my thread from last year: BWR California - Bike/Tire Choice
If you’re not used to dirt, or you haven’t ridden dirt since Oct/Nov, I’d recommend going up a size in tires. If you’re comfortable and have ridden dirt outside all winter, 32-33mm with a little tread was all that was needed last year. I was a bit under tired on my 33mm slicks, but that was mostly because I was still trying to remember how outdoor riding works!