What Is The First Day Of Fall 2025 Usa. In 2024, the autumnal equinox will take place on. The beginning of fall in the united states and the northern hemisphere is marked by the september equinox, also known as the autumn equinox.
The beginning of fall in the united states and the northern hemisphere is marked by the september equinox, also known as the autumn equinox. This year the autumn will start on sunday september 22, 2024 (day of the fall equinox) and will end on saturday december 21, 2024 with the winter solstice.