Sibyl Analiese

First Day Of Spring Usa 2024. The spring equinox is tuesday, march 19 and brings the first day of astronomical spring to the northern hemisphere. Spring is here — officially, at least.

The spring equinox is tuesday, march 19 and brings the first day of astronomical spring to the northern hemisphere. The first day of spring (march equinox or vernal equinox) is when the sun shines directly on the celestial equator passing from south to north and the length of day.