What Months Are Spring 2024. In 2024, these are the astronomical dates and times for the start of each season: Spring starts on march 1, summer on june 1, autumn on september 1, and.

The vernal equinox arrives on tuesday, march 19, marking the start of the spring season for the northern hemisphere. Spring begins with the vernal equinox, tuesday, march 19, 2024, 11:06 p.m.