First Day Of Fall Each Year. The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd. Some perseids do appear during the evening, but the shower.
In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. Around march 20 we have the vernal equinox or march equinox, also known as the spring.