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Seasons in 2015

Here are the dates of seasons in 2015. Seasons are astronomical events in relation to the position of the Earth on its orbit around the Sun (for more about how seasons work, check our tutorial 'Seasons'). As 2015 is not a leap year, February will count 28 days

. spring or the vernal equinox occurs on March 20th at 22:45 UT
. summer or the summer solstice occurs on June 21st at 16:38 UT
. fall or the autumnal equinox occurs on September 23rd at 08:20 UT
. winter or the winter solstice occurs on December 22nd at 04:48 UT

Each year Earth, further, is reaching its perihelion (its closest to the Sun) and aphelion (its farthest from the Sun). for more about how those concepts work, check too our tutorial 'Seasons'

. Earth's perihelion occurs on January 4th at 08:59 UT
. Earth's aphelion occurs on July 6th at 12:59 UT