Spring Equinox 2025 Usa Dates. First day of spring in usa and uk, when is spring vernal equinox in usa 2025? So many parts of the world will see the equinox arrive on march 19.
The data correspond to the seasons of the year 2025. For those of us in the northern hemisphere, this was marked by the arrival of the vernal equinox (otherwise known as the โfirst.