The weekend takes a turn to wet and cool weather; Sunday’s highs 20 degrees cooler than Saturday’s summery weather The Equinox (Vernal & Autumnal) From the National: There are only two times of the year when the Earth’s axis is tilted neither toward nor away from the sun,

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence this year happens on Sunday.

The official first day of fall, otherwise known as the autumnal equinox, is this weekend in the Northern Hemisphere. According to Encyclopedia Britannica, it is one of only two days, the other being the vernal equinox, when the sun is directly above the Equator, essentially dividing night and day into equal portions.