Spring Equinox 2024 Usa Map. The start of astronomical spring, known as the vernal equinox, occurred yesterday, march 19, 2024, at 11:06 p.m. On this date, the day is equal.
Here are the equinox and solstice dates—plus, answers to common questions about the seasons of the year in north america. On march 19, the vernal equinox will see spring come to the northern hemisphere as the sun reaches the spot where the ecliptic and celestial equator cross each other.