Have you seen this TV commercial for Hawaii that looks like a weather bulletin?
I'm wondering if they take the daily low for San Francisco, to make it seem colder than it really is. I saw this one on Wednesday night, and it definitely didn't feel that chilly outside.
In any case, it's good marketing. I think San Francisco should adopt this strategy during the summer.
How about airing a commercial in Atlanta, Miami or Phoenix in July?
Your city: 90+˚
San Francisco: 59˚