When Is Autumn In America Work ❲OFFICIAL❳

Because the calendar year varies slightly (due to leap years), the exact dates can shift by a day or two, but generally, astronomical autumn runs from late September through late December.

Starts at the Autumnal Equinox , which in 2026 occurs on Tuesday, September 22 (at 8:05 p.m. EDT). It officially ends with the winter solstice on December 21 . Peak Foliage & "Leaf Peeping"

There is no single "wrong" answer—only context-dependent definitions. when is autumn in america

Here is the breakdown of when Autumn occurs in America.

The "feel" of autumn—leaf color change, harvest time, and first frosts—arrives at very different times across America’s vast geography. Because the calendar year varies slightly (due to

This is the most common official definition. It begins on the Autumnal Equinox , which usually falls on September 22 or 23 . In 2026, astronomical fall officially begins on September 22 and concludes with the winter solstice on December 21 .

Northern states like Vermont and Maine see peak colors in early October , while southern parts of the region (like New York and Pennsylvania) peak in late October . The Midwest and Great Lakes It officially ends with the winter solstice on December 21

Autumn in America does not have a single, fixed date. Its definition varies depending on whether one uses astronomical (based on Earth’s orbit around the sun) or meteorological (based on annual temperature cycles) standards. Additionally, the perception of autumn—marked by foliage color and cooler weather—varies significantly by geographic region due to climate differences.

Used by climatologists and weather forecasters to track data in consistent chunks, this definition follows the calendar months. Meteorological fall runs from September 1 to November 30 . Regional Variations: When "Fall" Actually Feels Like Fall

Starts September 1 and ends November 30 . This definition uses the calendar months to track consistent weather patterns and temperature cycles for easier record-keeping.

For meteorologists, Autumn in America consists of three full months: