The real sign of Autumn for me is when my plastic (lidded) glass of water on my bedside table remains cool all night.. that is when subsidiary signs appear in the form of a down comforter, long sleeved undershirt, and old socks filled with rice and microwaved come down from storage.
   No serious color change in foliage yet, but nights in the 40s are a warning. We are supposed to have a *heat wave* of a week in the low 80s now... but the comforter and 'warmy bags' of rice stay where they are.