When Is The Last Day Of Fall 2025 Usa. Fall begins with the autumnal equinox, sunday, september 22, 2025, 8:44 a.m. When is the first day of fall?

Fall begins with the autumnal equinox, sunday, september 22, 2025, 8:44 a.m. Astronomical fall is slated to begin at 7:44 a.m.