Here is a breakdown organized by the three main ways autumn is defined.
Meteorologists and climatologists divide the year into four groups of three months based on the annual temperature cycle and the Gregorian calendar. This method makes it easier to track climate statistics. September, October, and November. It begins on September 1st and ends on November 30th . Southern Hemisphere Meteorological Autumn: March, April, and May. It begins on March 1st and ends on May 31st . 3. The Astronomical Perspective autumn in which month
Historically, these months represent the primary period for harvesting crops before the frost of winter. Here is a breakdown organized by the three
In the Northern Hemisphere, generally spans the months of September, October, and November . September, October, and November
Regardless of the specific months, autumn is defined by several ecological and atmospheric transitions:
Autumn typically spans from September to December .
In the , autumn falls in March, April, and May (e.g., autumn equinox around March 20–21).