Seasons Astronomy Definition Free Jun 2026

| Feature | | Meteorological Seasons | | :--- | :--- | :--- | | Basis | Earth’s position in orbit; Solar geometry | Annual temperature cycles; Weather patterns | | Start Dates | Vary slightly (March 20–21, etc.) due to leap years | Fixed dates (Dec 1, March 1, etc.) | | Duration | Uneven (89 to 93 days) | Even (3 full calendar months) | | Primary Use | Navigation, Almanacs, Cultural ceremonies | Forecasting, Climate statistics, Agriculture |