That time of year

It seems like every summer, there comes a day late in the season where something just feels different. Something about the light and the air signals that fall isn't far away. Today was that day for me. There was something about the quality of light this evening--as if someone was filtering the western sky--that made it feel like the days of summer are numbered. That's not to say it's going to cool off or that the leaves are going to change anytime soon, but if this evening was any indication, we've somehow reached a turning point in the summer.