Chillier weather, shorter days, hot mugs of apple cider and Halloween decorations aren't the only signs the seasons are changing. It's officially the first day of fall, based on astronomical data.

When will summer end? When is the first day of fall? What time is the autumn equinox? Two dates three weeks apart mark start of fall.

What is the autumnal equinox? The autumnal equinox marks the start of autumn in the Northern Hemisphere. The Earth travels around the sun at an angle, and for most of the year, the Earth’s axis is ...

On Sept. 22, the autumnal equinox, which signals the start of fall in the Northern Hemisphere, finally brings an end to our long, hot summer on Monday at 2:19 p.m. EDT. This happens at a precise ...

See more of our coverage in your search results. Add The New York Post on Google The autumnal equinox arrives on Monday, September 22, 2025, at 2:19 P.M. EDT, bringing with it the end of summer, the ...

Happy first day of fall, Californians, and never mind the fact that the leaves near you may still be green or the temperatures may be more reflective of summer. The season began on Monday, Sept. 22, ...

Bring out your sweaters, light a scented candle, and grab a pumpkin spice latte – the official start of fall is almost here. The autumnal equinox takes place on Monday, Sept. 22, in the Northern ...

While many people mourn summer with the passing of Labor Day Weekend, the autumnal equinox is the official end of the summer season. Besides sweater weather and pumpkin-spiced menu items, what does ...