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First Quarter Moon Full Moon Last Quarter Moon New Moon
Tue, 20-Apr-2021 1:59am CDT
20 April 2021 06:59 GMT
Mon, 26-Apr-2021 10:31pm CDT
27 April 2021 03:31 GMT
Mon, 03-May-2021 2:50pm CDT
03 May 2021 19:50 GMT
Tue, 11-May-2021 2:00pm CDT
11 May 2021 19:00 GMT


Vernal Equinox
Start of Spring
Summer Solstice
Start of Summer
Autumn Equinox
Start of Fall
Winter Solstice
Start of Winter
Start of Spring First day of Summer First day of Fall First day of Winter
Sat, 20-Mar-2021 4:37am CDT
20 March 2021 09:37 GMT
Sun, 20-Jun-2021 10:32pm CDT
21 June 2021 03:32 GMT
Wed, 22-Sep-2021 2:21pm CDT
22 September 2021 19:21 GMT
Tue, 21-Dec-2021 9:59am CST
21 December 2021 15:59 GMT

 

The four seasons are determined by changing sunlight (not heat!) - which is determined by how our planet orbits the Sun and the tilt of its axis.

At the start of spring - The Spring Equinox - day and night are approximately 12 hours long and the Sun is at the midpoint of the sky. Our north pole tilts towards the Sun.

At the Summer Solstice, the longest day of the year, the Sun is at its most northern point in the sky. After this date, the days start getting shorter.

Fall begins at the Autumn Equinox. Day and night are about 12 hours long and the Sun is at the midpoint in the sky. The north pole moves away from the Sun.

The start of winter begins with the Winter Solstice, the shortest day of the year, when the Sun is at its most southern point in the sky. From then on, the days start getting longer.