spring and autumn begin midway between the two solstices. these are the aquinoxes.
may 1st
Spring.
Winter Equinox ended in 2006.
In the Northern Hemisphere the winter season officially start at the December solstice and lasts till the following equinox. The December solstice is on either December 20, 21, 22 or 23; and the following Equinox is around March 20, 21, 22 or 23
In 2011, the Autumnal Equinox begins on September 23rd.
Winter is from the Winter Solstice, December 21st, to the Spring Equinox, March 20th.
Winter starts on December 21st, the winter solstice and it ends on the Spring equinox
in December
October 21
Winter Equinox was created in 2004.
Winter Equinox ended in 2006.
Officially, winter begins with the Winter Solstice on December 21.
Winter begins on or about June 21 in the southern hemisphere.
it ends at the spring equinox, also called the vernal equinox.
In the Northern Hemisphere the winter season officially start at the December solstice and lasts till the following equinox. The December solstice is on either December 20, 21, 22 or 23; and the following Equinox is around March 20, 21, 22 or 23
Because the winter equinox is on Dec. 21st, and when the northern hemisphere is tilted away from the sun (winter) the southern hemisphere is tilted towards it.
no
In Green Bay Wisconsin, it starts November 22.
In 2011, the Autumnal Equinox begins on September 23rd.