Anyone who thinks that SF doesn't have great weather, compared to the rest of the country, has clearly been in California so long they've lost touch with reality.

Do you really want to compare SF weather with Seattle, Portland, Chicago, New York, Boston, etc?

I like wearing shorts. At night. The fact that I can do this, at least some parts of the year, in New York, makes it a great city. In New York, I never once left the house wearing a tshirt, walked a neighborhood over, spent a few hours at a friend's, and then nearly died of hypothermia walking home. The fact that residents of SF have to check the weather every two hours and every time they cross into a new zip code is, imo, a fatal flaw. Yeah, it's often nice, but never nice enough for long enough (48 hours of reliable 70+ temperatures). Now, a few miles down the peninsula, things get more interesting...