The season is almost exclusively referred to as Autumn . While the meteorological definition is the same (Sept–Nov), the cultural "feel" of autumn can often stretch into late August, as the weather cools and schools return earlier than in the US.
While the above definitions are standard, some cultures define fall differently: what months are fall
Because the astronomical fall extends into late December in the Northern Hemisphere, many people find the meteorological definition (ending Nov 30) more practical for planning seasonal activities. The season is almost exclusively referred to as Autumn
The exact dates vary slightly each year (by 1–2 days) due to leap years and Earth’s elliptical orbit. The exact dates vary slightly each year (by
| Aspect | Meteorological Fall | Astronomical Fall | |--------|--------------------|--------------------| | | Weather forecasting, climatology | Calendars, cultural events, astronomy | | Date consistency | Fixed (same dates every year) | Varies slightly (±1–2 days) | | Start signal | First of September/March | Autumnal equinox | | Length | 91 days (Sept–Nov) or 92 (Mar–May) | 89–93 days (depends on orbit) |
In the Northern Hemisphere (including the US, Canada, and Europe),