in Thoreau’s Journal:

A white frost this morning, lasting late into the day. This has settled the accounts of many plants which lingered still.

What with the rains & frosts & winds the leaves have fairly fallen now— You may say the fall has ended. Those which still hang on the trees are withered & dry —  I am surprised at the change since last Sunday — Looking at the distant woods I perceive that there is no yellow nor scarlet there now— They are (except the evergreens) a mere dull dry red— The autumnal tints are gone.   What life remains is merely at the foot of the leafstalk.  The woods have for the most part acquired their winter aspect— And coarse rustling light colored withered grasses skirt the river & the woodside—