Noun
the full moon nearest the September equinox
Source: WordNetThe second reason why we call it the Harvest Moon is because it happens closest to the autumnal equinox. Source: Internet
The Blue Moon comes after the October Harvest Moon that fell on October 2, and it theoretically signifies the time to start stocking for winter. Source: Internet
October's first full moon, also known as the harvest moon, will appear on the first day of the month. Source: Internet
No one is saying that our new normal will return to the old normal by Memorial Day or Labor Day or the harvest moon, creating a distressing open-ended dynamic that thwarts a central means of coping. Source: Internet