What Months Are | The Fall

It is crucial to remember that seasons are not global. While people in New York are carving pumpkins in October, people in Sydney, Australia, are planting spring flowers.

If you live in the Southern Hemisphere (South America, southern Africa, Australia, and Antarctica), the fall months are:

During these months, the Southern Hemisphere tilts away from the sun, resulting in cooler temperatures, falling leaves (in temperate zones), and the harvest season.

So, what months are the fall?

In the Northern Hemisphere, fall (or autumn) is primarily identified as the months of September, October, and November what months are the fall

. However, the exact timeframe depends on whether you are using a meteorological or astronomical definition. Seasonal Definition Report 1. Meteorological Fall

Meteorologists define seasons by grouping the 12 calendar months into four 3-month periods based on the annual temperature cycle. Northern Hemisphere: September 1 to November 30. Southern Hemisphere: March 1 to May 31.

This fixed system makes it easier for scientists to track and compare weather data year-over-year. 2. Astronomical Fall

Astronomical seasons are based on the Earth's position relative to the sun and are the dates typically seen on most calendars. It is crucial to remember that seasons are not global

When Exactly is Fall? A Guide to the Season of Change The air is getting crisp, the leaves are turning brilliant shades of orange and gold, and pumpkin spice is everywhere. But when can you officially

say it’s fall? Depending on who you ask—an astronomer, a meteorologist, or even a local in the Southern Hemisphere—the answer changes. The Two Ways to Define Fall Most of us mark our calendars by one of two systems: Astronomical Meteorological 1. Astronomical Fall (The "Official" Calendar)

This version is based on the Earth's position relative to the sun. It begins on the autumnal equinox , when day and night are almost equal in length. Nature's Calendar Northern Hemisphere: Starts around September 22 or 23 and ends around December 21 or 22 (the winter solstice). Southern Hemisphere: Starts around March 20 or 21 and ends around June 20 or 21 AccuWeather 2. Meteorological Fall (The "Weather" Calendar)

Meteorologists prefer a simpler system. They break the year into four three-month blocks based on the annual temperature cycle. This makes it much easier to track climate data from year to year. During these months, the Southern Hemisphere tilts away

National Centers for Environmental Information (NCEI) (.gov) When does autumn start? - Nature's Calendar

The months considered "fall" depend on where you are in the world and whether you follow the calendar (meteorological) or the Earth's orbit (astronomical). Fall by Hemisphere Northern Hemisphere , fall typically occurs from September through November Southern Hemisphere , the seasons are reversed, and fall occurs from March through May Time and Date Hemisphere Meteorological Fall (Fixed Months) Astronomical Fall (Variable Dates) September, October, November Late September to Late December March, April, May Late March to Late June Two Ways to Measure Fall Meteorological Versus Astronomical Seasons | News

Everything above applies to the Northern Hemisphere (North America, Europe, most of Asia, northern Africa). Because the Earth’s hemispheres experience opposite seasons, the fall months in the Southern Hemisphere are reversed:

So, while someone in New York is raking leaves in November, someone in Sydney, Australia, is enjoying the flowers of late spring.