“The month of February is always a winter month globally.” Verification: ❌ False. In the Southern Hemisphere, February is a summer month (often the hottest). Season-month mapping is hemisphere-dependent.
In the 1900s, meteorologists realized that tracking climate data by astronomical solstices was impractical. A snowstorm on March 18th (astronomical winter) vs. March 22nd (astronomical spring) made annual comparisons impossible. Hence, the meteorological season was verified as the superior system for climate science.
| Season | Verified Months | Start Date (Fixed) | End Date | Key Identifier | |--------|----------------|--------------------|----------|----------------| | | March, April, May | March 1 | May 31 | Rapid warming, plant growth | | Summer | June, July, August | June 1 | August 31 | Hottest quarter, longest days | | Autumn | September, October, November | September 1 | November 30 | Cooling, leaf senescence | | Winter | December, January, February | December 1 | February 28/29 | Coldest quarter, shortest days | months for the seasons verified
“Spring always starts on March 1 everywhere.” Verification: ❌ False in astronomy. ✅ True in climatology. Always specify which system you are using to avoid confusion.
Early European cultures (Celtic, Norse) often defined seasons by lunar cycles or specific festivals (e.g., Samhain as Nov 1). These are not aligned with Earth’s axial tilt. “The month of February is always a winter month globally
In 2007, the World Meteorological Organization (WMO) officially standardized the meteorological seasons for all climate normals (1991-2020, 2001-2030, etc.). Today, every verified weather report uses March-May (Spring), June-Aug (Summer), Sep-Nov (Fall), Dec-Feb (Winter) . Part 4: Southern Hemisphere Verification (Crucial Note) If you live south of the equator, the verified months for seasons are exactly six months apart from the Northern Hemisphere. Do not use Northern charts.
For astronomical purists: Solstice/Equinox dates vary. Please consult a current ephemeris. Myth 1: “The solstice is the midpoint of the season.” Verification: ❌ False. The summer solstice is the beginning of astronomical summer, not the middle. The meteorological summer already has June 1 as its start. In the 1900s, meteorologists realized that tracking climate
| Season | Verified Months (Southern Hemisphere) | |--------|----------------------------------------| | Spring | September, October, November | | Summer | December, January, February | | Autumn | March, April, May | | Winter | June, July, August |