What Months Are The Fall Patched May 2026

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. what months are the fall

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

The months considered "fall" (or autumn) depend on whether you are using a meteorological astronomical calendar, as well as which hemisphere you are in. Fall in the Northern Hemisphere (Includes the USA, Canada, Europe, and most of Asia) Meteorological Fall

: Consists of three full calendar months to make record-keeping easier. September, October, and November Astronomical Fall : Based on the Earth's tilt and orbit around the sun. Autumnal Equinox (typically September 22 or 23 Winter Solstice (typically December 21 or 22 The New York Times Fall in the Southern Hemisphere When Exactly is Fall

(Includes Australia, New Zealand, South Africa, and South America)

Astronomical fall

Northern Hemisphere: starts at the autumnal equinox (around September 22–24) and ends at the winter solstice (around December 20–22). Commonly described as spanning late September, all of October and November, and early-to-mid December.
Southern Hemisphere: starts at the autumnal equinox around March 20–21 and ends at the winter solstice around June 20–22. Commonly spans late March, all of April and May, and early-to-mid June.

Astronomical dates vary slightly each year because equinoxes and solstices shift by a day or so.

October: Peak Autumn

Vibe: This is the quintessential fall month. Temperatures drop, and sweater weather officially arrives.
Key Events: Halloween, Thanksgiving (Canada), Oktoberfest.
Nature: This is prime foliage season in North America and Europe. Leaves turn brilliant shades of red, orange, and gold. Frost begins to appear in northern regions.

2. The Astronomical Definition (The "Equinox")

This is the definition most people are taught in school. It is based on the position of the Earth in relation to the Sun. Because the exact timing of the equinox shifts slightly each year, the dates of astronomical fall vary. Astronomical fall

The Months: Roughly Late September through Late December.
The Dates: Fall begins on the Autumnal Equinox (approx. Sept 22 or 23) and ends on the Winter Solstice (approx. Dec 21 or 22).
Why? The Autumnal Equinox is the moment when the sun shines directly on the equator, resulting in nearly equal day and night lengths. From this point until the Winter Solstice, the days get shorter and the nights get longer.

Is August a fall month?

No. August is the final month of summer (meteorological summer runs June, July, August). However, in very high latitudes or alpine regions, August nights may feel "autumnal."

Conclusion: Which System Should You Use?

When someone asks you, "what months are the fall?" the correct answer depends entirely on context:

For school calendars, gardening, or general conversation: Fall is September, October, and November (Northern Hemisphere) or March, April, and May (Southern Hemisphere).
For meteorological data or climate talk: Fall is September 1 to November 30 (north) or March 1 to May 31 (south).
For strict astronomical alignment or equinox rituals: Fall begins on the equinox (Sept 22/23) and ends on the solstice (Dec 21/22), spilling slightly into December.

Ultimately, the beauty of autumn—the crisp air, the changing leaves, the pumpkin spice, and the harvest moons—has no strict loyalty to a calendar page. But if you want to know when to pull out your sweaters or book that leaf-peeping road trip, mark your calendar for September, October, and November. That is the fall.