When Is Autumn In America =link= Jun 2026

Cool "sweater weather" typically settles in by mid-to-late September . Peak Foliage: Colors generally peak throughout October . The South and Southeast

The "peak" of autumn—when leaves turn vibrant shades of red, orange, and gold—varies by region:

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.

In America, there are two primary ways to define the timing of autumn: when is autumn in america

Because the U.S. spans a vast geographic area, the "feeling" of autumn—cooler air and changing colors—arrives at different times depending on where you are. New England and the Northeast

Like the Northeast, the Midwest experiences a distinct four-season shift.

There is no single "wrong" answer—only context-dependent definitions. Cool "sweater weather" typically settles in by mid-to-late

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

Often considered the quintessential American autumn, fall here is sharp and vibrant. Temperatures begin to dip in early September .

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 . This definition uses the calendar months to track

There are two ways meteorologists and astronomers define the season:

Meteorologists and climatologists define seasons differently to make weather statistics easier to calculate. They group the seasons by temperature cycles and the calendar year.

The famous golden Aspen trees in Colorado and Utah often peak between mid-September and early October . Cultural Milestones