Autumn

Autumn is a time of change.

The air gets much cooler. The days get shorter too.

This happens as we move toward winter. Leaves change to bright colors on the trees. Then, the leaves fall to the ground.

Many people celebrate the harvest during this time. Some people also celebrate Halloween. It is a very interesting season.

Autumn is a special season on Earth.

It marks the change from summer to winter. In the northern part of the world, it starts in September. In the southern part, it starts in March.

During this time, the days get shorter. The nights get longer too. The air also becomes much cooler. One big change happens to trees. Deciduous trees are trees that lose their leaves each year. Their leaves change to bright colors before they fall.

Many people use this time to harvest food. This means they gather crops like apples and pumpkins. Some people call this season "fall." This name comes from the way leaves fall from trees. Many cultures have festivals to celebrate the harvest. In the United States, people celebrate Thanksgiving. Others celebrate Halloween on October 31. These holidays often happen when the weather turns cold. Autumn is a time of both plenty and change.

Autumn is a special time on Earth. It is one of the four temperate seasons.

This season marks the move from summer to winter. In the Northern Hemisphere, it begins in September. In the Southern Hemisphere, it starts in March.

As the season moves along, the days get shorter. The nights get longer too. This continues until the winter solstice in December or June. The temperature also cools down quite a bit.

Nature changes in many ways during this season. One big change happens to deciduous trees. These are trees that shed their leaves every year. As the air gets colder, the leaves change to bright colors. This is a striking sight in many places.

After they change color, the leaves eventually fall to the ground. This is how the trees prepare for the winter ahead. The cooling weather tells the trees it is time to rest. This cycle happens every single year.

People have used different names for this season for a long time. The word autumn comes from the Latin word "autumnus." It may also come from an ancient Etruscan root.

In the past, people often called this time the harvest. As people moved to towns, the word autumn became more common. Some people call the season "fall." This name comes from the phrase "fall of the leaf." It traces back to old Germanic languages. It became common in England during the 16th century.

Different cultures have many ways to define the dates of autumn. In the United States, some people think autumn starts on Labor Day. This is the first Monday in September.

Meteorologists use months to define the season. In the north, they use September, October, and November. In the south, they use March, April, and May. In Ireland, the national weather service uses those same northern months. However, the Irish Calendar uses August, September, and October. An ancient scholar named Marcus Terentius Varro had his own dates too.

Autumn is often linked to many famous holidays and activities. Many cultures hold harvest festivals to celebrate ripe food.

In the United States and Canada, people celebrate Thanksgiving. The Jewish holiday Sukkot is also a harvest festival. Halloween is celebrated on October 31 in the Northern Hemisphere. In North America, people often eat pumpkins and apples during this time. You might even drink apple cider. Many sports also happen in the autumn. For example, American football is played almost exclusively during these months.

Autumn is one of the four temperate seasons on Earth. It serves as a vital transition between the warmth of summer and the cold of winter.

In the Northern Hemisphere, this period begins in September. In the Southern Hemisphere, the season starts in March. As the season progresses, the duration of daylight decreases noticeably. This means that nights become longer as the year moves toward the winter solstice. The winter solstice occurs in December for the Northern Hemisphere and in June for the Southern Hemisphere. Along with shorter days, the temperature also cools considerably during this time.

One of the most striking biological processes in autumn involves deciduous trees. These are trees that shed their leaves annually. As daytime and nighttime temperatures drop, the leaves undergo a dramatic color change. This visual shift happens as the trees prepare to shed their foliage.

This cycle is a key feature of temperate climates. The cooling weather acts as a signal for the trees to enter a period of rest. This natural rhythm ensures the trees can survive the upcoming winter months.

There are many different ways to define the dates of autumn. Meteorologists in the Northern Hemisphere typically define the season using the Gregorian calendar months of September, October, and November. In the Southern Hemisphere, they use March, April, and May.

Other traditions use different markers. The traditional East Asian solar term system defines autumn as starting around August 8 and ending near November 7. In Ireland, the national meteorological service uses the standard northern months. However, the Irish Calendar follows ancient Gaelic traditions where autumn lasts from August through October.

History shows that the names we use for this season have changed over time. The word "autumn" is derived from the Latin word *autumnus*. It may also come from an ancient Etruscan root related to the passing of the year.

Before the 16th century, people often used the term "harvest" to describe this time. As populations moved from farms to towns, "autumn" became the standard name for the season. In North America, the term "fall" is very common. This word likely comes from Middle English expressions like "fall of the leaf" or "fall of the year." While "fall" became less common in Britain, English settlers brought it to North American colonies during the 17th century.

Autumn is deeply connected to many cultural celebrations and harvest festivals. These events often celebrate the abundance of ripe foods. In the United States and Canada, Thanksgiving is a major national holiday. The Jewish holiday Sukkot also functions as a harvest festival.

Many Indigenous peoples in the Americas hold festivals tied to gathering wild foods. In China, the Mid-Autumn Festival is also known as the Moon Festival. These celebrations often mix a feeling of gladness for the harvest with a sense of melancholy. This melancholy comes from the approaching harsh weather and the end of summer.

In the Northern Hemisphere, autumn is also the time for Halloween on October 31. This holiday is influenced by the Celtic festival of Samhain.

Historically, this was a time for feasting but also a time to recognize the end of the growing season. Today, many businesses use the autumn months to promote Halloween products. In North America, seasonal foods like pumpkins and apples are very popular. People often use these ingredients for treats or to make apple cider. This connection to food and celebration is a defining characteristic of the season.

Beyond holidays, autumn influences many modern social systems. In North America, it marks the start of a new school year for many children. It is also a busy time for media, as television networks debut new series in late September or October.

Sports also follow an autumnal schedule. American football is played almost exclusively during these months. Major League Baseball concludes its season with the World Series, often called the "Fall Classic." Meanwhile, many summer sports like tennis and golf wrap up their seasons as the weather cools. This shows how the changing season affects everything from education to entertainment.