A common point of confusion is why the "official" start of summer (June solstice) feels cooler than July or August. This is due to a phenomenon called . Even though the Earth receives the most direct sunlight around the June solstice, the ground and oceans take time to heat up. By the time July and August arrive, the stored heat energy has accumulated, leading to the "dog days" of summer, even though the intensity of sunlight has begun to decrease.

When the Northern Hemisphere tilts the Sun, it experiences summer.

Nature is dormant, making it a time for resting, introspection, and, in many cultures, festivals and holiday celebrations 0.5.2.

In the 1900s, meteorologists realized that tracking climate data by astronomical solstices was impractical. A snowstorm on March 18th (astronomical winter) vs. March 22nd (astronomical spring) made annual comparisons impossible. Hence, the meteorological season was verified as the superior system for climate science.

The oldest form of seasonal verification is astronomical. For millennia, civilizations have used the solstices and equinoxes to demarcate the changing quarters of the year. Under this system, the verification of seasonal boundaries is rigid and precise to the minute.

While the Gregorian calendar is the global standard, many cultures around the world use seasonal definitions that do not fit neatly into the March-May or June-August boxes.