What Month Is Spring 2025. For those of us in the northern hemisphere, this was marked by the arrival of the vernal equinox (otherwise known as the. In 2025, the official first day of spring is thursday, march 20.

The table below will allow you to view the spring start and end dates for the years 2024, 2025 and 2026. The first day of spring is 20 march 2025.