Fall Equinox 2024 Usa Map. Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,. When is peak fall color, and where can i find it?

At an equinox, the sun appears directly above earth’s equator. A slider below the map allows you to watch how the colors are changing across the country.