Fall officially arrives Monday, Sept. 22 at 2:19 p.m. Astronomically speaking, this is the date and time of the autumnal equinox , the precise moment when the sun is seen directly overhead at noon at the Earth’s equator.

Both the northern and southern hemispheres will have almost equal amounts of daylight and night as the sun rises due east and sets due west everywhere on the planet — except for the poles.

Seen from space , the Earth is equally illuminated by the sun. All of this is repeated during the vernal equinox which marks the arrival of spring in the northern hemisphere around March 21.

The Earth’s seasons — fall, winter, spring and summer — are caused by the Earth’s orbit around the sun and the 23.5 degree tilt of our planet’s axis. This causes the amount of sunlight falling

See Full Page