Ourdoor epiphytes in coastal northwest of US

[DiskDePhragmentor]

What kind of epiphytic orchids can be grown outdoors in Eureka in northern California (or anywhere from there up to Washington)? Of course, these would be kept under the eaves during the soggy winter. Most years it seems to only get down to 28. Would I be pretty much limited to Laelia anceps/purpurata? I have heard of people growing outdoors in San Francisco, but is this simply too far north? Lemon trees, Mexican fan palms, and queen palms manage to survive.

Climate info: Eureka, California - Wikipedia