What Month Is Autumn In Usa [top] Jun 2026

November sees the end of the autumn color palette as trees shed their leaves. The days become noticeably shorter, and the temperature drops closer to freezing in the north. Snow is not uncommon in the northern Rockies and the Great Lakes region during late November.

The most common traditional definition uses the position of the Earth relative to the Sun. Autumn begins with the autumnal equinox (around September 22–23) and ends with the winter solstice (around December 21–22). Under this system:

While the simple answer is that autumn takes place during , the full answer is a bit more nuanced. In the USA, the season is defined by two different calendars: the astronomical calendar (which dictates the equinox) and the meteorological calendar (used by weather scientists). what month is autumn in usa

Meteorologists and climatologists require consistent date ranges to compare seasonal weather data. They divide the year into neat three-month blocks based on annual temperature cycles. Thus, meteorological autumn always consists of:

If you are planning a trip to the United States or simply trying to understand the seasonal calendar, you may be wondering: November sees the end of the autumn color

Under this definition, autumn typically encompasses the majority of .

To answer the question directly:

Here is a breakdown of what months constitute autumn in the USA and what you can expect during each one.