When Does Fall Officially Begin 2024 Dates. What are the fall months? — autumn 2024 starts on sunday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the.
What is the fall equinox? — the first day of fall in 2024 arrives with the fall equinox on sunday, september 22, 2024, at 8:44 a.m.