Monday’s Vernal Equinox : What is it?

We transition from winter to spring.

When this officially happens at 6:29 a.m. today, that moment is called the Vernal Equinox.

The Vernal Equinox is when the Earth is lined up so that the sun’s rays directly hit the equator.

During winter months, that line is in the southern hemisphere, and during summer months it’s in the northern hemisphere. This is thanks to the tilt of the Earth’s axis, which is an average of 23.5 degrees.


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The transition into spring will bring big changes to the Miami Valley. Average highs start the season at 51 degrees Monday. But by the start of summer on June 21, the average high will jump to 82 degrees. Daylight hours also will increase from 12 hours, 9 minutes on Monday to 14 hours and 49 minutes June 21.

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