Ah well for me anything under 75 F, pretty much. And that's American football, specifically, college.
Anything under 70 is Chili Weather, additionally. I'm in a Humid Subtropical Climate, where summers will get up in the high 90s easily. So some cool, dry air is nice- lows just under 50, highs in the low to mid 70s, is perfect. Couple months from now I'll be missing it when it's just cold