Farmers and gardeners need to know when fall begins to plan:
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In the astronomical calendar, the first three weeks of December are technically still fall. However, the weather during this time is distinctly winter-like in most northern climates, featuring freezing temperatures, bare trees, and winter holiday preparations. Summary Table Perspective Northern Hemisphere Months Southern Hemisphere Months September 1 – November 30 March 1 – May 31 Astronomical Sept. 22/23 – Dec. 21/22 March 20/21 – June 20/21 Cultural Focus
Understanding what months are fall helps with more than just small talk. It dictates several aspects of our lives:
October is often the most photographed month of fall, with tourists flocking to places like New England, the Great Smoky Mountains, the Japanese Alps (for koyo), and Germany's Black Forest.
Just like in the north, meteorologists in the south use neat three-month blocks:
Because the Earth takes roughly 365.24 days to orbit the sun, a leap day must be added every four years. This extra day causes the precise dates of the astronomical equinoxes and solstices to shift slightly each year. The Months of Northern Hemisphere Fall: A Closer Look
If you live in Australia, New Zealand, South Africa, or South America, fall occurs during the early to middle months of the calendar year:
To fully grasp , you need to understand why there are two primary systems. Each serves a different purpose, and both are widely used depending on the context.