Name: Rick Corey Everett WA 98204 (Zone 8a) Sunset Zone 5. Koppen Csb. Eco 2f
The California co-operative site talked a lot about drought, but I didn't stumble onto anything you don't already know. Their "home and garden" links seem heavily preoccupied with grass, and I don't mean California's largest cash crop!
Maybe if you use an agricultural co-op extension finder to find a station as close as possible to your part of your county, it will have some useful specifics.