Sunset's Western Garden Book
will tell you planting dates, variety recommendations, etc. It draws very clear and helpful climate zone lines. The 25-cent + box top recommendation is:
Sunset: 29 climate zones in Western states & provinces vs.
USDA: 11 climate zones in North America...
Which one will be more helpful to a gardener?
The 7th ed. was published 2001; 8th in 2008. The 6th isn't so helpful for gardeners in Alaska or Hawaii, but all are good for gardeners in California. I've waxed eloquent (more or less...) in other posts re. Sunset's "Gardening Bible," so full info is available elsewhere here at THG.
Good luck with fall planting!
Sunset Zone 17, USDA Zone 9