December Solstice in Jensen, Utah, USA is on
Thursday, December 21, 2017 at 9:28 am MST
Seasons: Meteorological and Astronomical
When do spring, summer, fall, and winter start and end? It depends on which definition you use and if you are north or south of the equator.
The four seasons.
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Season: Definition
The Earth’s axis is slightly tilted in relation to its orbit around the Sun. This is why we have seasons.
In most cultures, including all western countries, the year is commonly divided into four seasons:
- Spring
- Summer
- Fall or Autumn
- Winter
Since the year has 12 months, each season lasts about three months. However, the dates when the seasons begin and end vary depending on whom you ask. Two methods are most commonly used to define the dates of the seasons: the astronomical definition and the meteorological definition.
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