Are In Fall New!: What Months

Ask a dozen people what months belong to fall, and you might get a dozen different answers. For some, the season begins the moment the calendar flips to September 1st. For others, it doesn’t truly start until the autumnal equinox, when day and night stand in perfect balance. And for a surprising number, fall is measured not by dates or astronomy, but by the first crisp bite in the air or the sudden blush of a maple leaf.

Most national weather services (including NOAA in the U.S. and the Met Office in the U.K.) use this definition. If you check a long-term climate report, fall always means September through November. Then there’s the way people actually live the seasons. Cultural fall often ignores both equinoxes and meteorological convenience. what months are in fall

The question, “What months are in fall?” seems elementary. But beneath it lies a fascinating collision of astronomy, meteorology, culture, and even commerce. The answer depends entirely on whom you ask—and where they live. In the Northern Hemisphere, the most traditional answer comes from the sky. Astronomers define seasons by the Earth’s 23.5-degree tilt and its orbit around the sun. Fall, in this view, begins with the autumnal equinox —the precise moment the sun crosses the celestial equator, heading south. Ask a dozen people what months belong to