What Season Is Spring [repack] May 2026

[Generated AI] Date: April 14, 2026

The Ambiguous Equinox: Defining Spring Across Science, Ecology, and Culture

In common discourse, spring is considered one of the four temperate seasons. Yet, a child in the Northern Hemisphere might define it as “when flowers grow,” a farmer by “last frost date,” and a scientist by the vernal equinox. The lack of a singular definition creates confusion in climate science, agriculture, and everyday life. This paper argues that spring is best understood as a dynamic threshold event rather than a static quarter of the year.