First Day Of Fall 2024 Usa Calendar. Arriving between september 21 and 24, the day has spawned rituals in many cultures. In the northern hemisphere, the fall months are from the end of september, through october and.

In 2024, the first day of fall, also known as the autumnal equinox, is sunday, sept. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.