The first full day of spring in 2013 is Thursday 21 March for all inhabited land in the northern hemisphere except the Line Islands of Kiribati, where it's Friday 22 March for those islands that are in the northern hemisphere.
The first full day of spring in the Southern Hemisphere in 2013 is...
The date for the start of the Spring season each year is called the Vernal Equinox, one of two days on which the overhead path of the Sun moves across the equator. The actual date depends on one's location north or south of the equator, and will shift due to the 1/4 days by which the orbital year exceeds the calendar year.
2011 -
March equinox (spring begins in the northern hemisphere): March 20, 2011 (23:21 UTC)
September equinox (spring begins in the southern hemisphere): September 23, 2011 (09:04 UTC)
2012 -
March equinox (spring begins in the northern hemisphere): March 20, 2012 (05:14 UTC)
September equinox (spring begins in the southern hemisphere): September 22, 2012 (14:49 UTC)
March 20th
1900
Tuesday, 20 March 2012 is the first day of spring
The first day of spring in 1960 was March 20.
In the northern hemisphere, the first day of Spring in 2016 is on 20 April, while in the year 2023 it is on 21 March. In the southern hemisphere, the first day of Spring is always 1 September, and not on the vernal equinox.
20th march
The word is "equinoctial" = equal day and night. It occurs twice a year, on the first day of Spring, and the first day of Autumn.
The first day of spring.
The first day of spring is called vernal equinox!
The Vernal Equinox determines the first day of spring. The Autumn Equinox is what determines the first day of fall.
The Scientific name for the first day of spring is the Vernal Equinox!
The first day of spring in 2008 was March 20th.
The first day of spring in 2014 will fall on March 20th. This will be a Thursday.
The first day of Spring in 2019 falls on a Wednesday. This will be Wednesday, March 20th and is known as the Spring Equinox.
The first day of spring is always March 20, or the spring equinox. It is also called the vernal equinox.
The first day of spring is called the vernal equinox or the March equinox.
Tuesday, 20 March 2012 is the first day of spring
The date of Easter is determined by the first day of spring. Easter is held on the first Sunday after the first full moon after the first day of spring.
Last day of Spring: 31st of August