springtosummer

Springtosummer is a term used to describe the transitional period between the seasons of spring and summer. It denotes both a temporally defined interval and a conceptual shift in weather, daylight, and ecological activity. The phrase emphasizes the gradual move from milder, variable spring conditions to warmer, more stable summer patterns, and is used in meteorology, agriculture, ecology, and cultural contexts.

Timing of the transition varies by framework and region. In meteorology, spring is defined as March 1 to May 31 and summer as June 1 to August 31, making the spring-to-summer transition occur at the start of June. In astronomy, spring ends with the vernal equinox (around March 20–21) and summer begins at the summer solstice (around June 20–21), placing the transition in late June. In the Southern Hemisphere, the seasonal timing is opposite to that of the Northern Hemisphere, so the spring-to-summer transition occurs at different calendar dates.

Ecologically and climatically, springtosummer involves warmer temperatures, longer days, and changes in precipitation and humidity that affect plant growth, pollinator activity, agriculture, and wildlife behavior. Growers may adjust crops, irrigation, and pest management in anticipation of the warmer months, while natural ecosystems experience shifts in flowering, migration, and breeding cycles.

Culturally, the term is used in fashion and retail to describe collections that bridge spring and summer, as well as in travel and events that coincide with the late-spring to early-summer period. While not a formal climatological designation, springtosummer serves as a practical descriptor of transition across multiple domains.