First Day Of Spring 2024 March 21
First Day Of Spring 2024 March 21. The first day of spring always falls on one of these three days here in the northern hemisphere: The 2024 spring equinox occurred at exactly 11:06 p.m.
In 2024, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere). In 2024, it falls on march 20th, which is a wednesday.