The cold temperatures (down into the mid-20° F range) have triggered, finally, abscission layers in the last leaves.
The sugar maple leaves were finally falling in the ravine behind our house.
Coming home after Thanksgiving away, a walk around the neighborhood found the venerable ginkgo on Cumberland shedding leaves as we walked by -- not in the all-at-once mode that's normal, but falling in a way that would have made a perfect video, if I'd had my phone in my pocket.
There was a golden carpet, mixed with green, below this huge old tree. Beautiful.
Some of the red Japanese maples seem to be the last hold-out. They're beautifully crimson, but haven't yet dropped their leaves, perhaps being from a colder climate in Asia, genetically-speaking.
Of course, all of the frost-intolerant plants have been zapped, but the greens in my vegetable beds are looking good. And I'm hoping that the predicted soaking rains will come!