When Is Fall 2024 In Usa Calendar. Autumn 2024 starts on sunday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth's axis. The blistering summer of 2024 will soon.

Plan your fall trip today! Winter begins with the winter solstice, monday, december 21, 2026, 3:50 p.m.