Hey!
Well, it is cooler here in NYC too. We had a few heat waves here in NYC this past summer but I'm sure it is nothing like San Fernando Valley. But like many New Yorkers, I live a building and that can feel like an oven during a very hot day.

Anyway, I do have a small second/TV system of with SS integ-amp. But I don't use it much even during Summer, because every time I listen to it I always think of my big system.
So, I have to admit that I actually listen to music a bit less during hot summer days. But when I do turn on my big system I usually have my window air con on too... I have to put up with a bit of noise from the air con, and bigger electric bill at the end of the month.

Well, at least I'm not in the tropic where it is hot everyday.
Take care,
Buddy