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Seasons


Earth experiences four seasons: spring, summer, fall, and winter. This happens because our planet is tipped on its axis and the two poles point to the same directions in space all year. Summer occurs on the hemisphere that is tipped toward the Sun. The hemisphere tilted away from the Sun experiences winter. More information on why seasons occur

2016
Spring equinox 9:30 p.m. PDT March 19
Summer solstice 3:34 p.m. PDT June 20
Autumn equinox 7:21 a.m. PDT September 22
Winter solstice 2:44 a.m. PST December 21

2017
Spring equinox 3:29 a.m. PDT March 20
Summer solstice 9:24 p.m. PDT June 20
Autumn equinox 1:02 p.m. PDT September 22
Winter solstice 8:28 a.m. PSTDecember 21

2018
Spring equinox 9:15 a.m. PDT March 20
Summer solstice 3:07 a.m. PDT June 21
Autumn equinox 6:54 p.m. PDT September 22
Winter solstice 2:23 p.m. PST December 21

2019
Spring equinox 2:58 p.m. PDT March 20
Summer solstice 8:54 a.m. PDT June 21
Autumn equinox 12:50 a.m. PDT September 23
Winter solstice 8:19 p.m. PST December 21

2020
Spring equinox 8:50 p.m. PDT March 19
Summer solstice 2:44 p.m. PDT June 20
Autumn equinox 6:31 a.m. PDT September 22
Winter solstice 2:02 a.m. PST December 21

2021
Spring equinox 2:37 a.m. PDT March 20
Summer solstice 8:32 p.m. PDT June 20
Autumn equinox 12:21 p.m. PDT September 22
Winter solstice 7:59 a.m. PST December 21

2022
Spring equinox 8:33 a.m. PDTMarch 20
Summer solstice 2:14 a.m. PDTJune 21
Autumn equinox 6:04 p.m. PDTSeptember 22
Winter solstice 1:48 p.m. PSTDecember 21

2023
Spring equinox 2:24 p.m. PDT March 20
Summer solstice 7:58 a.m. PDT June 21
Autumn equinox 11:50 p.m. PDT September 22
Winter solstice 7:27 p.m. PST December 21

2024
Spring equinox 8:06 p.m. PDT March 19
Summer solstice 1:51 p.m. PDT June 20
Autumn equinox 5:44 a.m. PDTSeptember 22
Winter solstice 1:20 a.m. PSTDecember 21

2025
Spring equinox 2:01 a.m. PDT March 20
Summer solstice 7:42 p.m. PDT June 20
Autumn equinox 11:19 a.m. PDT September 22
Winter solstice 7:03 a.m. PST December 21