Even though I have no experience with west coast dive locations, I do with cold water dives.
I believe that there is no need to go on a dive vacation to escape to cold when you can buy a drysuit for the same price (or cheaper) and dive locally. If you are on a budget I would suggest the Scubapro Everdry 4 which only costs $1000. Only a thin undergarment is needed ($125)because of its neoprene design. With a total cost of a little over $1100 you can stay warm and cozy in 48 degree water (I know because of personal experience). With a thin layer of under armor material you will be fine in 60 degree water. I don't know how cold the water is in your area, but a drysuit should solve all of your cold issues.
Buying a drysuit for the price of a vacation will be very cost effective. You only have to spend the money once and can dive very often locally while still being warm. If you do not have a restricted budget then there are more expensive drysuits such as DUI's. Good luck in finding a solution to your problems.