Often, the September full Moon is called the Harvest Moon instead of the Full Corn Moon. Unlike other full Moon names, which are specific to their respective months, the Harvest Moon is tied to an astronomical event: the autumnal equinox. The full Moon that falls nearest to the equinox (September 22) takes on the name “Harvest Moon,” rather than its traditional name. This means that a Harvest Moon may occur in either September or October.
The Harvest Moon provides the most light at the time when it’s needed most—to complete the harvest!
Other traditional September full Moon names include:
“Moon When the Plums Are Scarlet” by the Lakota Sioux Native Americans.
“Moon When the Deer Paw the Earth” by the Omaha Native Americans.
“Moon When the Calves Grow Hair” by the Sioux Native Americans