>> tomatos don't do well in the So. Cal coastal zones either...for the most part. They do tend to like drier climates.
Hmm, I thought all of CA was dry! That shows what I know.
Fortunately my part of the PNW coast is dry and sunny during the few months warm enough for tomatoes. A cool Mediteranian climate pattern.
But now that I know they don't like constant drizzle, my grandiose plans for keeping them under plastic in late spring and fall will be intended to keep them drier, as well as keep them warmer.
My nights are still dipping down to 42-44F, so I wouldn't even be tempted to harden off if I had started seeds. Since the daily HIGHS are as often below 50 as above 50, I'm not really missing any great opportunities.