Autumnal Equinox 2024 Dates Usa. The autumnal equinox brings fall to the northern hemisphere today as the sun passes directly over the equator at noon. The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd.
Here are the equinox and solstice dates—plus, answers to common questions about the. This year, it falls on sunday, sept.
