When Is The First Day Of Fall 2024 Usa Calendar. 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. Here's everything you should know about the fall equinox—plus our favorite fall facts, folklore,.

In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. The first day of fall in 2024 arrives with the fall equinox on sunday, september 22, 2024, at 8:44 a.m.