Yet, neither the meteorological nor the astronomical definitions fully capture the phenomenological reality of the season. Phenologically—studying the timing of natural events—fall is the most flexible of seasons. It does not adhere to a calendar; it adheres to latitude. For a resident of the northern United States, September is undeniably fall. The maple leaves turn red, the air becomes crisp, and pumpkin spices emerge. However, for a resident of the deep South or the Southwest, September is merely a continuation of a prolonged summer; the thermometer often refuses to drop until late October. In these regions, "fall" is compressed into November and December, a brief respite before a mild winter. The months of fall are therefore not fixed dates, but rather a sliding scale that travels from north to south.
In summary, to determine when fall is, always note the hemisphere: for the north, March–May for the south. what months are fall in
While the calendar provides a date, nature provides the cues. Regardless of which month the calendar says it is, you know fall has arrived when you see these classic transitions: For a resident of the northern United States,
Fall, also known as autumn, is one of the four temperate seasons. In the Northern Hemisphere—which includes North America, Europe, and much of Asia—the fall months are . In the Southern Hemisphere—such as Australia, South Africa, and parts of South America—fall occurs during March, April, and May . In these regions, "fall" is compressed into November
In the Northern Hemisphere, fall typically spans September, October, and November. If you are in the Southern Hemisphere, the seasons are reversed, meaning fall occurs during March, April, and May.