Spring Equinox Northern Hemisphere 2024. Winter officially begins in the northern hemisphere on saturday, dec. 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 vernal equinox, the astronomical beginning of spring, occurs this year today, tuesday, 19 march, 2024 at 3:06 utc (11:06 pm edt). It marks almost equal lengths of day and night, although the amount of daylight is.