Fall 2024 Months. The four seasons of the year in the united states —spring, summer, fall, and winter — are what determine the weather, the ecosystem, and the hours of daylight throughout the year. See see our 2024 fall foliage color map to get an idea of when fall leaves change their color.

See see our 2024 fall foliage color map to get an idea of when fall leaves change their color. In 2024, the last day of summer in the northern hemisphere is september 22!