Wed March 29, 2017

2011 Seasons Calendar


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Seasons divide the year into four distinct periods of time named Spring, Summer, Autumn/Fall, and Winter. Each season brings different weather, hours of light, and plant/animal behaviors. The seasons are brought about by the yearly orbit of the earth around the sun and the tilt of the earth's axis. Below are the astronomical dates for the calenadar year 2011 for both the northern and southern hemispheres.

Season Date # Days Season Start
Northern Hemisphere
Spring March 20th - Sunday -2201
Summer June 21th - Tuesday -2108
Autumn/Fall September 23rd - Friday -2014
Winter December 21st - Wednesday -1925
* Local time for Denver, CO. Accurate globally within 24 hrs.

Season Date # Days Season Start
Southern Hemisphere
Autumn/Fall March 21st - Monday -2200
Winter June 22nd - Wednesday -2107
Spring September 23rd - Friday -2014
Summer December 22nd - Thursday -1924
* Local time for Sydney, Aus. Accurate globally within 24 hrs.