When Does Fall Start 2025 Usa Dates. New england boasts some of the most colorful fall foliage displays. In the northern hemisphere, the fall months are from the end of september, through october and november and into.

In 2025, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. Starts on thursday, june 20 at 4:51 pm, and ends on september 22 at 8:44 am.