What Are the Four Seasons
The four seasons are spring, summer, autumn (also called fall), and winter. They follow a fixed order each year and are driven by Earth's tilt and orbit around the Sun.
Order and Timing of the Seasons
In the Northern Hemisphere, spring starts around March 20, summer around June 21, autumn around September 22, and winter around December 21. The Southern Hemisphere experiences the same seasons at opposite times of the year.
Key Facts About Each Season
Spring brings rising temperatures and plant growth. Summer has the longest days and highest heat. Autumn features cooling temperatures and falling leaves. Winter brings the shortest days and coldest weather. For more details, see the National Weather Service guide on seasons.
