First Day Of Spring 2024 Usa. Spring gets its official start tuesday, march 19, 2024, in the northern hemisphere. But while the vernal equinox takes place the evening of march 19 in the united states, it will already be.
Based on the textbook definition, there are two types of equinoxes in a calendar year, namely, vernal and autumnal. Spring will last from march 19 until june 20, when summer officially starts in 2024.