Understanding the timing of the four seasons requires looking at both the tilt of the Earth and the patterns of our atmosphere. Here is everything you need to know about when the seasons start and end. 1. The Astronomical Approach (Solstices and Equinoxes)
Scientists and climatologists use the , which breaks the seasons into three-month blocks based on the annual temperature cycle rather than the Earth's tilt. This makes record-keeping much simpler. Spring: March 1 – May 31 Summer: June 1 – August 31 Autumn: September 1 – November 30 Winter: December 1 – February 28 (or 29) 3. Why Do the Dates Shift? when do the four seasons start and end
Starts around June 20 or 21 . This is the longest day of the year in the Northern Hemisphere, when the North Pole is tilted most directly toward the sun. Understanding the timing of the four seasons requires