Meteorological fall begins on September 1, while astronomical fall starts on September 22 at 2:19 PM ET. Meteorological seasons are based on temperature, while astronomical seasons are based on the ...
On Sept. 22, the autumnal equinox, which signals the start of fall in the Northern Hemisphere, finally brings an end to our long, hot summer on Monday at 2:19 p.m. EDT. This happens at a precise ...