Used by weather forecasters for consistent record-keeping, dividing the year into three-month blocks based on temperature cycles. Northern Hemisphere: March, April, and May. Southern Hemisphere: September, October, and November. Ecological/Phenological:

When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere, and vice versa. While both are transitional seasons, their characteristics are opposite:

How we define the "start" of spring depends on the scientific criteria used:

Animals like bears, hedgehogs, and insects emerge from winter dormancy. Weather Dynamics

Meteorologists and climatologists use a different definition to group the seasons into clean, three-month blocks. This meteorological definition is based on civil calendar months and annual temperature cycles rather than astronomical positioning.

Winter (Cold/Dark) ───> SPRING (Transition) ───> Summer (Hot/Light) • Rising Temps • Equal Day/Night • Ecological Rebirth

The Hindu festival of colors that marks the victory of good over evil and the official arrival of spring.

Biologists define spring by specific biological events, known as "phenophases":

, this is a request for a long article on the keyword "spring definition season." The user wants a comprehensive piece, so I need to think about what that entails. "Long article" suggests depth, maybe 1500+ words. The keyword itself tells me the core focus: defining spring as a season.

: Spring provides abundant food and mild weather, making it the primary season for animals to give birth and raise young. Cultural and Historical Significance