Spring Equinox For 2025. It's officially the first day of spring, but why is it today and what is an 'equinox'? In 2025, the spring equinox—aka the first day of spring—occurs on tuesday, march 19, 2025.


Spring Equinox For 2025

When do the four seasons start in 2025—for spring, summer, fall, and winter? In 2025, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere).

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