Spring Equinox Brings Equal Daylight Across the U.S.
• The spring equinox marks the start of astronomical spring with equal daylight and nighttime hours.
• This year's equinox follows a winter of extreme weather variations across the U.S., including severe cold in the Northeast and drought in the West.
• Despite regional extremes, the overall winter temperature across the U.S. was warmer than average.
Vernal equinox marks start of spring
The spring equinox, also known as the vernal equinox, is set to occur on Friday, March 20, at 10:46 a.m. ET. This astronomical event marks the beginning of spring and is characterized by an equal balance of daylight and nighttime hours around the globe. The Earth's axis is neither tilted toward nor away from the sun during this time, resulting in approximately 12 hours of daylight and 12 hours of darkness for most locations.
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