Fall Is What Months -

Typically December 21st or 22nd (The Winter Solstice).

Beyond just the dates on a calendar, the months of September, October, and November are defined by specific transitions in nature and culture: fall is what months

When someone asks, "Fall is what months?" the safest, most widely accepted answer in the English-speaking world is September, October, and November (in the north). But the nuance matters—especially if you are planning an event near the end of November or the beginning of December. Typically December 21st or 22nd (The Winter Solstice)