We have certainly noticed the change in our recent travels. Colors in both British Columbia and Montana are starting to show (not just the August browns but some gold in willows and aspens). Speaking of shorter days, it was really noticeable being at the Yukon and BC border, and travelling south as the days are getting shorter. It seems we went from it being light until past 10 pm in early to mid August to dark before 8 just a couple weeks later, even in the same time zone but quite a few miles south in Idaho!