First Day of Fall 2024


When is the First Day of Fall 2024?

The First Day of Fall 2024 is on Sunday, September 22, 2024 (in 297 days).  Calendar for 2024
The First Day of Fall 2023 has already passed: it was on Saturday, September 23, 2023 (67 days ago).  Calendar for 2023
Please note: The dates given on this page are based on Coordinated Universal Time (UTC), which for practical purposes is equivalent to Greenwich Mean Time (GMT). While Fall starts and ends at the same moment in time all over the Northern Hemisphere, the date of the First Day of Fall differs from location to location depending on a location's time zone. For more details see the explanations below.
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What is the First Day of Fall?

Fall colors. Photo: flickr.com/photos/hopvanphan/15862291544Fall colors
The first day of fall marks the beginning of the fall season (usually called autumn outside of North America), one of the four seasons that make up the year.

Astronomical fall vs. meteorological fall

There are various ways to define the start and end dates of fall. The two most commonly used ones are based on the astronomical calendar and the meteorological calendar. Astronomical and meteorological fall start and end on different dates.

Astronomical fall

In the astronomical calendar the start and end dates of fall are based on the changing position of Earth in relation to the sun and the resulting solar events of equinoxes and solstices. In the Northern Hemisphere summer ends and fall starts at the moment of the September equinox, which occurs every year between September 21 and 24. Fall ends and winter starts at the moment of the December solstice, which occurs every year between December 20 and December 23. In the Southern Hemisphere fall lasts from the March equinox (March 19 to 21) to the June solstice (June 20 to 22).

The start and end dates for fall given on this page are the dates of astronomical fall in the Northern Hemisphere and are based on Coordinated Universal Time (UTC), which for practical purposes is equivalent to Greenwich Mean Time (GMT - the time zone of the United Kingdom). While fall starts and ends at the same moment in time all over the Northern Hemisphere, the date and local time differ from place to place depending on the year and a location's time zone. For locations that are ahead of UTC (further east) it may fall on the day after, and for locations that are behind UTC (further west) it may fall on the day before. To find out the exact date and time of fall 2024 in your area use this seasons calculator.

Meteorological fall

Meteorologists, on the other hand, define seasons based on climatic conditions and the annual temperature cycle. It is important for them to be able to compare the same period of time in different years. The length of the astronomical seasons varies between 89 and 93 days, while the length of the meteorological seasons is less variable and is fixed at 90 days for winter in a non-leap year (91 days in a leap year), 92 days for spring and summer, and 91 days for fall. While the exact definition of a season's timing and length can differ in different areas based on local conditions, in most of the Northern Hemisphere meteorological fall is generally defined as the three months of September, October and November, with the season starting on September 1 and ending on November 30.

There is no "official rule" which definition of fall to use, and different countries adhere to different conventions. Most of North America and Europe use astronomical fall, while Australia and New Zealand use meteorological fall (however, as these countries are in the Southern Hemisphere, the seasons are opposed and fall there lasts from March to May). In other cultures, eg. in the traditional Chinese calendar and in Celtic traditions, the September equinox is considered to be roughly the middle of fall.

Further reading:

Comparison table: meteorological spring vs. astronomical spring

Dates shown apply to the Northern Hemisphere and are based on UTC (GMT)
Sea­son Start End
Mete­oro­logi­cal Astro­nomi­cal Mete­oro­logi­cal Astro­nomi­cal
Spring March 1 March 19 to 21
Spring equi­nox
(vernal equi­nox, March equi­nox)
May 31 June 20 to 22
Summer sols­tice
(June sols­tice)
Sum­mer June 1 June 20 to 22
Summer solstice
(June solstice)
August 31 Septem­ber 21 to 24
Autumn equi­nox
(Fall equi­nox, Septem­ber equi­nox)
Au­tumn
(Fall)
Sep­tem­ber 1 Septem­ber 21 to 24
Autumn equi­nox
(Fall equi­nox, Septem­ber equi­nox)
Novem­ber 30 Decem­ber 20 to 23
Winter sols­tice
(Decem­ber sols­tice)
Winter Decem­ber 1 Decem­ber 20 to 23
Winter sols­tice
(De­cem­ber sols­tice)
February 28 (29) March 19 to 21
Spring equi­nox
(vernal equi­nox, March equi­nox)

When is the First Day of Fall 2025?

The First Day of Fall 2025 is on Monday, September 22, 2025 (in 662 days).  Calendar for 2025

Dates for the First Day of Fall from 2019 to 2029

The next occurrence of the First Day of Fall is marked in red.

When is ...? Date      Day of the week      Days away     
First Day of Fall 2019      September 23, 2019      Monday      1528 days ago
First Day of Fall 2020      September 22, 2020      Tuesday      1163 days ago
First Day of Fall 2021      September 22, 2021      Wednesday      798 days ago
First Day of Fall 2022      September 23, 2022      Friday      432 days ago
First Day of Fall 2023      September 23, 2023      Saturday      67 days ago
First Day of Fall 2024      September 22, 2024      Sunday      in 297 days
First Day of Fall 2025      September 22, 2025      Monday      in 662 days
First Day of Fall 2026      September 23, 2026      Wednesday      in 1028 days
First Day of Fall 2027      September 23, 2027      Thursday      in 1393 days
First Day of Fall 2028      September 22, 2028      Friday      in 1758 days
First Day of Fall 2029      September 22, 2029      Saturday      in 2123 days
Data provided 'as is' without warranty

First Day of Fall 2024
Dates of the First Day of Fall 2024 and surrounding years as downloadable image file

Printable 2024 Calendars for Word, Excel and PDF


Calendar templates 2024 for Word, Excel and PDF

Free printable 2024 calendar templates

A selection of downloadable, printable calendar templates for 2024 with US federal holidays, suitable for a variety of applications. Available for Word, Excel and PDF.


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