September marks the formal end of summer. In the early weeks, summer weather often lingers (a phenomenon known as "Indian Summer"). As the month progresses, daylight hours noticeably shrink, and evening temperatures begin to drop. Schools resume, and agricultural harvests begin. October: Peak Autumn
To visualize the difference, let's look at the Northern Hemisphere timeline:
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
| Definition | Fall Months | | :--- | :--- | | | September, October, November | | Astronomical | Late September – Late December (exact dates vary) |
"Autumn" is the older of the two terms, entering the English language from the Old French word autompne (and the Latin autumnus ) around the 14th century. Before this, the season was simply referred to as "harvest." September marks the formal end of summer
In the , meteorological fall is simply:
A transitional month, often still warm, but with cooling evenings [1]. Schools resume, and agricultural harvests begin
Here is the breakdown of what months constitute fall.
Under this definition, winter begins precisely on December 1st, meaning December is not considered a fall month. The Northern vs. Southern Hemisphere