When Is The First Day Of Autumn 2024 Usa. When is the 2024 fall equinox? Spring starts on march 1, summer on june 1, autumn on september 1, and.
When the autumnal equinox arrives in september each year, we greet the arrival of the autumn season. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.