Summer ends on different dates depending on the definition used:
- Astronomical summer ends with the autumnal equinox, which in 2024 falls on September 22 in the Northern Hemisphere. This is when day and night are approximately equal in length, marking the official start of fall
- Meteorological summer is defined as the three full months of June, July, and August, so it ends on August 31. This calendar-based definition is often used for weather statistics and forecasting
In summary, summer officially ends on September 22, 2024 , by the astronomical definition, but meteorologically it ends on August 31, 2024.
