idk...this seems like a fairly abrupt "end" to me. We'll still pull 80s or even 90F like we do every September. But it has felt like weeks of 15-20C 850s that are getting replaced with predominantly 7-13C stretches. Brief 1-2 day mild ups and then right back into seasonably cool temps.
Once we get to mid September it's a much sharper drop downhill so that's when I'll start cheering on above normal temps again and start bitching about missing summer.