Autumn

Autumn (often referred to as Fall in North America) is one of the four temperate seasons, the transition from summer into winter.

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In the temperate zones, autumn is the season during which most crops are harvested, and deciduous trees lose their leaves. It is also the season in which the days rapidly get shorter and cooler (especially in the northern latitudes), and of gradually increasing precipitation in some parts of the world.

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Astronomically, it begins with the autumnal equinox (around September 23 in the Northern hemisphere, and March 21 in the southern hemisphere), and ends with the winter solstice (around December 21 in the Northern hemisphere and June 21 in the Southern hemisphere). However, meteorologists count the entire months of March, April and May in the Southern hemisphere, and September, October and November in the Northern hemisphere as autumn. An exception to these definitions is found in the Irish Calendar which still follows the Celtic cycle, where Autumn is counted as the whole months of August, September and October.

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All though the days begin to shorten in July or August in the northern latitudes and in January and February in the south, it is usually in September or March where twilight becomes evidently shorter and more abrupt in comparison with the more lingering ones of summer.

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Autumn is often defined as the start of the school year in most countries, since they usually begin in early September or early March (depending on the latitude).

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Either definition, as with those of the seasons generally, is flawed because it assumes that the seasons are all of the same length, and begin and end at the same time throughout the temperate zone of each hemisphere.

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North America: North America is a continent in the northern hemisphere, bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west by the North Pacific Ocean. It covers an area of 9,355,000 square miles (24,230,000 square kilometers). In 2...

Seasons: REDIRECT Season...

Summer: Summer is a season, defined by convention in meteorology as the whole months of June, July and August in the Northern hemisphere and the whole months of December, January and February in the Southern hemisphere. The first day of summer in the Northern hemisphere is either June 21 or June 1 (the form...

Autumn related Images and Photos (experimental)

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