Fall Season Months In USA
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Autumn
Autumn, also known as fall in North American English, is one of the four temperate seasons. Outside the tropics, autumn marks the transition from summer to winter, in September (Northern Hemisphere) or March (Southern Hemisphere). Fall is the season when the duration of daylight becomes noticeably shorter and the temperature cools considerably.
Day length decreases and night length increases as the season progresses until the Winter Solstice in December (Northern Hemisphere) and June (Southern Hemisphere). One of its main features in temperate climates is the striking change in colour for the leaves of deciduous trees as they prepare to shed.
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a transcontinental country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, 326 Indian reservations, and nine minor outlying islands. It is the third-largest country by both land and total area.
The United States shares land borders with Canada to the north and with Mexico to the south as well as maritime borders with the Bahamas, Cuba, and Russia, among others. With more than 331 million people, it is the third most populous country in the world. The national capital is Washington, D.C., and the most populous city and financial center is New York City.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago, and European colonization began in the 16th century. The United States emerged from the Thirteen British Colonies established along the East Coast. Disputes with Great Britain over taxation and political representation led to the American Revolutionary War (1775–1783), which established the nation’s independence.
In the late 18th century, the U.S. began expanding across North America, gradually obtaining new territories, sometimes through war, frequently displacing Native Americans, and admitting new states. This was strongly related to belief in manifest destiny, and by 1848, the United States spanned the continent from east to west. Slavery was legal in the southern United States until 1865, when the American Civil War led to its abolition.
A century later, the civil rights movement led to legislation outlawing racial discrimination against African Americans. The Spanish–American War and World War I established the U.S. as a world power, and the aftermath of World War II left the United States and the Soviet Union as the world’s two superpowers. During the Cold War, both countries opposed each other in the Korean and Vietnam Wars but avoided direct military conflict.
They also competed in the Space Race, which culminated in the 1969 American spaceflight that first landed humans on the Moon. The Soviet Union‘s dissolution in 1991 ended the Cold War, leaving the United States as the world’s sole superpower. The September 11 attacks in 2001 resulted in the United States launching the war on terror, which included the War in Afghanistan (2001–2021) and the Iraq War (2003–2011).
The United States is a federal republic with three separate branches of government, including a bicameral legislature. It is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, NATO, and other international organizations. It is a permanent member of the United Nations Security Council.
Considered a melting pot of cultures and ethnicities, its population has been profoundly shaped by centuries of immigration. The United States is a liberal democracy; it ranks high in international measures of economic freedom, quality of life, income and wealth, education, and human rights; and it has low levels of perceived corruption. It lacks universal health care, retains capital punishment, and has high levels of incarceration and inequality.
The United States is a highly developed country, and its economy accounts for approximately a quarter of global GDP and is the world’s largest by GDP at market exchange rates. By value, the United States is the world’s largest importer and second-largest exporter.
Although it accounts for just over 4.2% of the world’s total population, the U.S. holds over 30% of the total wealth in the world, the largest share held by any country. Making up more than a third of global military spending, it is the foremost military power in the world and a leading political, cultural, and scientific force.
Seasons: Meteorological and Astronomical
The Four Seasons
The Earth’s axis is slightly tilted in relation to its orbit around the Sun. This is why we have seasons.
How exactly do seasons work?
In most cultures, including all western countries, the year is commonly divided into four seasons:
Since the year has 12 months, each season lasts about three months. However, the dates when the seasons begin and end vary depending on whom you ask. Two methods are most commonly used to define the dates of the seasons: the astronomical definition and the meteorological definition.
Different Countries, Different Seasons
The question which definition to use divides countries and regions around the world. For example, Australia and New Zealand use the meteorological definition, so spring begins on September 1 each year. In many other countries, both definitions are used, depending on the context.
In Ireland, St Brigid’s Day on February 1 is often thought to mark the beginning of spring in the ancient Celtic calendar system. Some cultures, especially those in South Asia have calendars that divide the year into six seasons, instead of the four that most of us are familiar with.
In Finland and Sweden, the dates of the seasons are not based on the calendar at all, but on temperatures. This means that the seasons within each county start and end on different dates, depending on the regions and their climate.
In Iceland, the first day of summer, a national holiday, falls on the first Thursday after April 18.
Seasons of the Year in the United States
The four seasons of the year in the United States – spring, summer, fall, and winter – are what determines weather, hours of daylight, and ecology throughout the year. In 2022, these are the astronomical dates and times for the start of each season:
- Spring: March 20, at 3:33 P.M.
- Summer: June 21, at 10:14 A.M.
- Fall: September 23, at 2:04 A.M.
- Winter: December 21, at 9:48 P.M.
The times correspond to the Eastern Time (ET) time zone and will vary in different states.
Because the United States is located on the Northern Hemisphere of the planet, the rule of thumb is that the months of spring through to summer have the hottest temperatures, while the weather gets colder during fall and winter.
However, this is a vast country with a few different regions, which means that there are three climatic zones in America. States such as California, Florida, Arizona, and Texas are usually warm all year round. On the other hand, places like New York, New England, Washington, and the Midwest have more distinct seasonal changes throughout the year.
Spring
Spring starts on March 20 or 21 and lasts until June 20 or 21.
The first day of spring happens on the spring equinox, which marks the astronomical beginning of spring. Meteorologically, spring begins on March 1st.
This season comes after winter and before summer, is characterized by the temperatures warming and the days getting longer. It is during spring that plants start blossoming for the summer.
Learn more about Spring Equinox (Start of Spring).
Summer
Summer lasts from June 20 or 21 until September 22 or 23, which places it between spring and fall.
This is the warmest of the months, where temperatures soar, and when there are more hours of daylight, as the days are longer than the evenings. In the United States, some regions have warm, humid weather, while in other areas the days are very hot and arid.
The first day of summer is marked by the summer solstice, which corresponds to the astronomical beginning of summer.
Fall
This month begins on September 22 or 23 and ends on December 21 or 22.
During this season, temperatures start dropping, and the nights start getting longer again. Also known as autumn, in the United States fall gets its name because of the leaves on the trees that begin changing colors and falling.
In some states, the landscape totally changes during fall, with greenery being replaced by bright reds and oranges.
Lear more about Autumnal Equinox (Start of Fall).
Winter
Winter starts on December 21 or 22, lasting through to March 20 or 21, falling right between fall and spring.
In winter the weather gets colder, with some regions getting temperatures as low as 3 °F, and the nights become longer than the days. Many of the Northern states get snow throughout the season.
The first day of fall begins on Tuesday, say meteorologists
“Meteorological” fall (aka autumn) is defined as the months of September, October and November in the Northern Hemisphere (it’s spring in the Southern Hemisphere).
Most people consider the first day of autumn to be the autumnal equinox, which this year is September 23, according to WeatherBug meteorologist Mark Hoekzema. This is because, astronomically, the sun will be directly overhead of the equator as the Earth`s tilt begins to point the Northern Hemisphere away from the sun.
So astronomical fall is still more than three weeks away. People often say the “official” start of the seasons are the astronomical dates.
Meteorologists and climatologists need specific dates for the four seasons, so it makes sense for the seasons to follow our familiar monthly schedule. Scientists require set time periods to calculate averages and do year-to-year and decade-to-decade seasonal comparisons, Hoekzema said.
Thus, the three hottest months of June, July and August constitute summer, while the three coldest months of December, January and February are winter.
As for fall, September is more of a “fall-ish” month, while December is more wintry, so the meteorologists seem to have it right.
Unfortunately for those longing for crisp, cool fall weather, it’ll be hard to find on Tuesday. Temperatures will be warmer than average for much of the country, which will be accompanied by stifling humidity.
The one cool spot will be the Pacific Northwest coast, where rain and temperatures in the 60s and 70s are forecast, according to the National Weather Service.
