When Is The First Day Of Fall 2024 Usa Calendar. The first day of winter in the northern hemisphere is marked by the winter solstice, which is expected to arrive at 3:19 a.m. First day of fall in 2024 is on sunday, the 22nd of september (22/9/2024).
Arriving between september 21 and 24, the day has spawned rituals in many cultures. In 2023, fall starts on saturday, september 23.