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  2. Autumn - Wikipedia

    en.wikipedia.org/wiki/Autumn

    Autumn is the season when the duration of daylight becomes noticeably shorter and the temperature cools considerably. Day length decreases and night length increases as the season progresses until the winter solstice in December (Northern Hemisphere) and June (Southern Hemisphere).

  3. Autumn | Definition, Characteristics, & Facts | Britannica

    www.britannica.com/science/autumn-season

    autumn, season of the year between summer and winter during which temperatures gradually decrease. It is often called fall in the United States because leaves fall from the trees at that time.

  4. Autumn Definition & Meaning - Merriam-Webster

    www.merriam-webster.com/dictionary/autumn

    The meaning of AUTUMN is the season between summer and winter comprising in the northern hemisphere usually the months of September, October, and November or as reckoned astronomically extending from the September equinox to the December solstice —called also fall. How to use autumn in a sentence.

  5. When is the First Day of Fall? Autumnal Equinox 2024

    www.almanac.com/content/first-day-fall-autumnal-equinox

    Welcome fall! The autumnal equinox—the September equinox or the fall equinox—arrives on Sunday, September 22. Not only do temperatures drop, but plant life slows down, and so do we. Read about the first day of fall, plus some fun facts and folklore.

  6. Fall And Autumn: They Don't Mean The Same Thing | Weather.com

    weather.com/news/weather/news/2024-09-04-fall-autumn-different-meanings

    Fall and autumn are often used interchangeably to describe the third season of the year. But did you know there's a difference in their original meanings?

  7. The first day of fall marks the autumn equinox, which is different from a solstice. Today is the fall equinox and first day of autumn, when the sun rises directly in the east and sets...

  8. Why leaves change color in the autumn - NBC 5 Dallas-Fort Worth

    www.nbcdfw.com/weather/weather-connection/leaves-change-color-science-autumn/...

    NBC 5 meteorologist Ryann Jones explains why the leaves change during the fall. The physical signs of fall begin when the leaves change color and start to fall from the trees. This transformation ...

  9. Autumn: The cooling-off season - Live Science

    www.livescience.com/24476-autumn.html

    Sandwiched between blazing summer and chilly winter, autumn is the "cooling off" season. Nighttime arrives earlier, temperatures begin to drop and most vegetative growth decreases. Animals begin...

  10. Five signs that autumn is here - BBC Teach

    www.bbc.co.uk/teach/articles/z4tr2sg

    Autumn can be one of the best times of the year to see the Northern Lights, also known as Aurora Borealis. The longer nights, and chances of clear skies, means the natural display of colour and...

  11. Autumn leaves are staying green for longer in Britain – here’s...

    theconversation.com/autumn-leaves-are-staying-green-for-longer-in-britain...

    The tree is no longer growing by mid-autumn but it may still be clothed in foliage if conditions stay mild. This allows time for the tree to reabsorb nutrients from its leaves (that’s what ...