| 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) |
Meteorologists and climatologists divide the year into four equal quarters consisting of three full months each. This system aligns perfectly with the civil Gregorian calendar, making it much easier to track long-term climate data, calculate seasonal weather averages, and keep consistent records. what months are fall
To accurately answer "what months are fall," you must first understand the two different systems scientists, meteorologists, and calendars use to track the changing seasons. 1. Meteorological Fall (Based on Temperature) | Aspect | Meteorological Fall | Astronomical Fall