Why December 21 is the Shortest Day of the Year

Posted by on Tuesday, December 20, 2016

The December solstice is on either December 20, 21, 22 or 23.

The North Pole is tilted furthest from the Sun. It is the winter solstice in the Northern Hemisphere, where it is the shortest day of the year.

In the Southern Hemisphere, it is the summer solstice and the longest day of the year.

More evident from high latitudes, a hemisphere's winter solstice occurs on the shortest day and longest night of the year, when the sun's daily maximum elevation in the sky is at its lowest.



The Team

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