When Is The First Day Of Spring 2025 Calendar Usa. The season of renewal, blooming flowers, and warmer weather. March 2025 calendar with holidays and celebrations of the united states.

Spring will arrive on thursday, march 20, 2025, and last until june 21, 2024. In the northern hemisphere, the astronomical start of spring, also known as the spring equinox, will occur on thursday, march 20, at 5:01 am edt in 2025.