Spring Equinox Northern Hemisphere 2024. This year, the winter solstice in the northern hemisphere is on 21 december, and therefore our astronomical winter begins today. The september 22, 2024, equinox marks a significant astronomical event, heralding the beginning of fall in the northern hemisphere and the start of spring in the southern hemisphere.

While the vernal equinox marks the beginning of spring, the weather patterns in 2024 will vary depending on the region and hemisphere. The september 22, 2024, equinox marks a significant astronomical event, heralding the beginning of fall in the northern hemisphere and the start of spring in the southern hemisphere.