We haven't had much color yet (normal for us), but I was using a leaf blower on Saturday, and realized we're about 2 weeks ahead on leaf drop. Probably due to dry conditions. The poplars have noticeably lost about half their foliage. I live in a forest, and can hear many neighborhood leaf blowers, so it's not just my imagination.
Had 0.25" rain on October 1, and almost nothing since then.