Here in Vermont one harbinger of fall is when the sumac leaves turn color. With our recent flash floods and damage from the tropical storm/hurricane Irene I hadn't noticed that the beginning of fall was upon us. The past couple of morning have been cool with temperatures of 58F/14.4C and the days warmer with temperatures in the 70'sF/23C. This an an ideal day for me but to others signals the beginning of fall and then winter weather.
Most everything is still green except for a sumac bush which has turned color.
These sumac still say summer to me.
However this says fall to me.
Sumac and other green trees.
Close up of a drupe (red bunches of sumac fruit).
Another close up.