Spring Equinox Northern Hemisphere 2024. The vernal equinox 2024 brings spring to the northern hemisphere today, marking a celestial occurrence that has been celebrated across cultures for millennia. The spring equinox (march 19, 2024) signals the start of spring in the northern hemisphere, the beginning of autumn in the southern hemisphere, and a rare moment of equal night across the.

In 2024, the official first day of spring is tuesday, march 19. But what does that actually mean?