First Day Of Fall 2024 Calendar Usa. When do the four seasons start in 2024—for spring, summer, fall, and winter? First day of fall in 2024 is on sunday, the 22nd of september (22/9/2024).
See see our 2024 fall foliage color map to get an idea of when fall leaves change their color. The date varies slightly year to year, but it is usually september 22 or 23.