Posted on September 22, 2020 © 2020 by Linda Moulton HoweToday Is the 2020 Autumnal Equinox. Autumnal equinox is in the fall when the Sun is exactly above the Equator and day and night are of equal length. This morning of September 22, 2020, marked the 2020 fall equinox. Temperatures are quickly dropping on the East Coast now as well and the trees are changing from summer greens to reds and yellows. © 1998 - 2020 by Linda Moulton Howe.All Rights Reserved.