Sat August 01, 2015

2013 Seasons Calendar


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 2013 for both the northern and southern hemispheres.

Season Date # Days Season Start
Northern Hemisphere
Spring March 20th - Wednesday -864
Summer June 20th - Thursday -772
Autumn/Fall September 22nd - Sunday -678
Winter December 21st - Saturday -588
* Local time for Denver, CO. Accurate globally within 24 hrs.

Season Date # Days Season Start
Southern Hemisphere
Autumn/Fall March 20th - Wednesday -864
Winter June 21st - Friday -771
Spring September 23rd - Monday -677
Summer December 22nd - Sunday -587
* Local time for Sydney, Aus. Accurate globally within 24 hrs.