I think it's odd how we have out of town star parties in June, but not in September (except the Wilson Commons BBQ this year). September is more of a summer month than June, actually. Going by not only the official solstice start dates, but also the weather.
A reminder of the timing of the seasons: Only the last third of June is summer (summer solstice started the 21st this year), yet over two thirds of Sept. is summer (autumn equinox starts the 23rd). The weather is often still stuck in wet/cold season into June. It was the first week this year. (In fact, two years ago it was overcast, rainy, and stormy for a month straight until it finally switched to the warm/dry season at the very day of the summer solstice June 21.) Yet September is usually quite summer-like still, then it switches back to wet/cold season in October or November. (Knock on wood... for having said that

.) So when people invariably start saying summer's coming to an end in early August... no it isn't, that's smack dab in the middle of summer! At least wait 'til the end of Aug. when there's "only" one
full month to go. I don't know why they're in such a hurry for it to end, anyway.
Not that I'm saying scratch June, and add September. More like, just add Sept!