When Do The Four Seasons Start And End [best] -
When the four seasons start and end depends on whether you follow the stars or the thermometer. There are two primary systems used to define these dates: the astronomical calendar and the meteorological The Old Farmer’s Almanac 1. Astronomical Seasons (Celestial Alignment)
Each astronomical season runs from one event to the next: when do the four seasons start and end
Variations
In the Southern Hemisphere:
- Forecasting, climate normals, and many weather reports use meteorological seasons to summarize typical conditions (e.g., “climatological summer averages” use June–August).
- Begins: June 20th or 21st (Winter Solstice)
- Ends: September 22nd or 23rd
Spring (Vernal Equinox): Starts around March 20 or 21. On this day, the sun passes directly over the equator, making day and night nearly equal in length. When the four seasons start and end depends
(the longest and shortest days of the year). Because a full orbit takes approximately 365.24 days, these dates shift slightly each year. in the Northern Hemisphere, the astronomical timeline is: Starts March 20 (Vernal Equinox) and ends June 20. Starts June 21 (Summer Solstice) and ends September 21. Fall (Autumn): Winter (Winter Solstice): Starts on the shortest day