Seasons In America Dates: !!exclusive!!

These are the most commonly referenced dates in calendars, determined by the solstices and equinoxes. Dates can vary by one day from year to year (usually June 20/21 or Dec 21/22).

| Season | Start Date | End Date | |--------|------------|----------| | | March 1 | May 31 | | Summer | June 1 | August 31 | | Fall | September 1 | November 30 | | Winter | December 1 | February 28 (or 29) | seasons in america dates

| Season | Start Date (approx.) | End Date (approx.) | Key Event | |--------|----------------------|--------------------|------------| | | March 19–21 | June 20–21 | Vernal (Spring) Equinox – equal day & night | | Summer | June 20–21 | September 22–23 | Summer Solstice – longest day of the year | | Fall (Autumn) | September 22–23 | December 21–22 | Autumnal Equinox – equal day & night | | Winter | December 21–22 | March 19–21 | Winter Solstice – shortest day of the year | These are the most commonly referenced dates in