Any type of sunny weather that would attract visitors to your city. In Atlanta, that means 65 degrees and sunny on a Saturday in February.
We had a client team come in from Detroit on Friday, and due to the Chamber of Commerce weather, they just wanted to go to Park Tavern and drink all afternoon.
Traditionally it has meant a day with gorgeous weather that would encourage tourists to visit and companies to relocate to a particular area. In Atlanta, it means a mid-October Saturday when it is 65 degrees, not a cloud in the sky, and you are out drinking on a patio with a woman who has no problem going down on you after your second date...
"Hey, it looks like a Chamber of Commerce Day this Saturday; 70 degrees, light breeze, no chance of rain, what would you say to the Treehouse for a late liquid lunch?"
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)