You might hear the term "autumn equinox" tossed around Sept. 22 on the first day of fall. But what exactly does that mean? Is it different from a solstice? Yes, actually. They mark seasonal changes ...

Are you ready for fall? The official arrival of fall is the autumnal equinox, which occurs in the Northern Hemisphere on Monday. After a hot summer, the September equinox marks a welcome shift in the ...

Fall begins in the Northern Hemisphere on Monday, Sept. 22, when Earth experiences equal day and night, known as the autumnal equinox. While fall officially begins with the autumnal equinox, if you ...

Today, Sept. 22, marks the autumnal equinox of 2017, officially ending summer and bringing us in the northern hemisphere into fall. The autumnal equinox generally falls on the same day every year, and ...

It may not seem like it, but the official start of fall is here! And with it come football games, falling leaves, and of course, all the talk about pumpkin spice everything! From a weather standpoint, ...

It's fall, ya'll! Sweater weather is upon us. The beginning of the autumn season marks the end of warm summer days and the start of longer chilly nights. As the Earth travels around the sun, it does ...

Monday heralds the arrival of the autumn equinox, marking the official end of summer and the beginning of a period where nights will progressively outlast days. This astronomical phenomenon occurs as ...

CHICOPEE, Mass. (WWLP) – The autumn equinox occurred at 2:19 p.m. on Monday, marking the transition into astronomical fall. Meteorological fall spans September, October, and November, with average ...

September's (sporadic) sweater weather chill and the changing leaf colors are a sign that the first day of fall is near. Here's what to know about the autumnal equinox and fall foliage forecast map ...