The astronomical seasons are defined by Earth’s 23.5-degree axial tilt and our orbit around the sun. They begin on the four "quarter days" of the year: the two solstices (longest and shortest days) and the two equinoxes (equal day and night).
These are the standard divisions used for climate reporting and planning in India: months for the seasons verified
While many people follow the astronomical seasons (based on solstices and equinoxes), scientists often prefer meteorological seasons because the dates stay consistent every year, making data collection much easier. Verified Meteorological Seasons The astronomical seasons are defined by Earth’s 23
Whether you follow the start (the 1st of the month) or the Astronomical start (the solstice/equinox), these dates are the verified standards for tracking time. If you’re planning a garden, use the astronomical dates. If you’re checking your local weather records, stick with the meteorological months. Verified Meteorological Seasons Whether you follow the start