Spring Equinox 2024 Northern Hemisphere. In 2024, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern. The northern hemisphere entered the spring season officially on wednesday with the march equinox.

This event marks the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. The northern hemisphere’s spring — or vernal — equinox can land between march 19 and 21, depending on the year.