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11 de feb. de 2022 · Bibliography. Seasons are periods of the year with distinct weather conditions and day lengths. The four seasons — winter, spring, summer, autumn — can vary significantly in characteristics and...
fall (autumn) runs from September 1 to November 30; and winter runs from December 1 to February 28 (February 29 in a leap year ). When the Northern Hemisphere gets most sunlight (summer), the Southern Hemisphere gets least (winter).
Dates are based on the Gregorian calendar. Times adjusted for DST if applicable. Current year is highlighted. The Seasons Calculator shows the times and dates of Vernal (Spring) & Autumnal (Fall) equinoxes and Summer and Winter solstices all over the world.
12 de mar. de 2024 · The four seasons— spring, summer, fall, and winter —follow one another regularly. Each has its own light, temperature, and weather patterns that repeat yearly. In the Northern Hemisphere, winter generally begins on December 21 or 22. This is the winter solstice, the day of the year with the shortest period of daylight.
In temperate and sub-polar regions, four seasons based on the Gregorian calendar are generally recognized: spring, summer, autumn (fall), and winter. Ecologists often use a six-season model for temperate climate regions which are not tied to any fixed calendar dates: prevernal , vernal , estival , serotinal , autumnal , and hibernal .
Autumn, or fall, season of the year between summer and winter during which temperatures gradually decrease. The autumn temperature transition between summer heat and winter cold occurs only in middle and high latitudes; in equatorial regions, temperatures generally vary little during the year.
Autumn, also known as fall in North American English, is one of the four temperate seasons on Earth. Outside the tropics, autumn marks the transition from summer to winter, in September ( Northern Hemisphere ) or March ( Southern Hemisphere ).
