November is the 11th month of the year in the Julian and Gregorian Calendars and one of four months with the length of 30 days. November was the ninth month of the ancient Roman calendar. November retained its name (from the Latin novem meaning "nine") when January and February were added to the Roman calendar.
November is a month of spring in the Southern Hemisphere and autumn in the Northern Hemisphere. Therefore November in the Southern Hemisphere is the seasonal equivalent of May in the Northern Hemisphere and vice versa.
November starts on the same day of the week as February in common years, and March every year. November ends on the same day of the week as August every year.
In the pagan wheel of the year, November begins at or near Samhain in the Northern Hemisphere and Beltaine in the Southern Hemisphere.
Events in November
- All Saints' Day (formerly All Hallows Day), a Christian holy day, is celebrated on November 1. The day before, Halloween, is therefore "All Hallows Eve". In Sweden the All Saints' official holiday (Alla helgons dag, not to be confused with Allhelgonadagen celebrated on November 1) takes place on the first Saturday of November (eventually October 31 if a Saturday). The 2011 Swedish All saints day did take place on November 5.
- 1 November – Day of the leaders of the Bulgarian national revival
- In Ireland, November 1 is regarded as the first day of Winter.
- November 1 is called November Day (Lá Samhna) in Celtic tradition and is thus named in the Irish Calendar, where the month is called Mí na Samhna.
- In the Roman Catholic calendar, November 2 is All Souls Day. It is known in Mexico as el Día de los Muertos (Day of the Dead), and the whole month of November is especially dedicated to praying for the dead
- Britain and New Zealand celebrate Guy Fawkes Night, the anniversary of the failed Gunpowder Plot, on November 5.
- In Indonesia, November 10 is known as National Heroes Day.
- November 10 is the birthday of the United States Marine Corps.
- Independence Day in Poland on November 11.
- Saint Maartens Day (Sint maarten) in the Netherlands (Dutch version of Halloween which gets celebrated with home-made lanterns and singing songs for candy)
- Remembrance Day is celebrated on November 11 in the Commonwealth of Nations and various European countries (including France and Belgium) to commemorate World War I and otherwars. It is known as Veterans Day in the United States.
- In India, Children's Day is celebrated on November 14, the birthdate of first Indian Prime Minister Pandit Jawaharlal Nehru.
- World Diabetes Day is celebrated on November 14.
- The Leonids meteor shower reaches its peak around November 17.
- Latvian Independence day November 18.
- Discovery to the Eastern World of Puerto Rico by Christopher Columbus on November 19, 1493.
- International Men's Day is commemorated on the 19 November.
- Día de la Revolución, or Revolution Day, is celebrated in Mexico on November 20.
- Transgender Day of Remembrance has occurred on November 20 each year in the United States since 1999.
- National Adoption Day – November 21
- Independence Day in Lebanon on November 22.
- Rudolf Maister day in Slovenia on November 23
- On 24 November each year, Lachit Divas is celebrated statewide in Assam, India, to commemorate the heroism of the great general Lachit Borphukan and the victory of the Assamese army over the Mughal army at the battle of Saraighat in 1671.
- Suriname celebrates its Independence Day on November 25.
- Albanian independence day is on November 28.
- Scotland celebrates St Andrews Day, its official national day, on 30 November. Since 2006 it has been an official bank holiday.
- Argentina celebrates the Day of National Sovereignty on 20 November, to conmemorate the Vuelta de Obligado battle. It has been declared an official national holiday in 2010
- The United States and Puerto Rico observe Thanksgiving on the fourth Thursday in November.
- For Western Christians, Advent usually begins on a Sunday during the last week of November.
- Native American Heritage Month
- Pancreatic Cancer Awareness Month
- COPD Awareness month 
- National Novel Writing Month
- Alzheimer's Disease Awareness Month
- American Diabetes Month
- Lung Cancer Awareness Month
- National Homeless Youth Awareness Month
- Crohn's & Ulcerative Colitis Awareness Month
- National Pomegranate Month in the United States 
- Holy Souls in Purgatory (Roman Catholic Church)
- International Drum Month
- National Stomach Cancer Awareness Month (United States)
- Epilepsy Awareness Month
- No Shave November