First Full Day Of Spring 2024. The spring equinox is tuesday, march 19 and brings the first day of astronomical spring to the northern hemisphere. In 2020, the spring equinox was the first to occur on march 19 — at least for those of us in north america — since 1896.
The spring equinox is tuesday, march 19 and brings the first day of astronomical spring to the northern hemisphere. But why does the day mark the start of spring and why only in the northern hemisphere?.
