Vernal Equinox 2018: Facts About the First Day of Spring - National GeographicNational GeographicVernal Equinox 2018: Facts About the First Day of SpringNational GeographicThis celestial alignment results in the equinox—a day with light and dark of (nearly) equal length, with the sun rising precisely in the east and setting precisely in the west. This year, the vernal, or spring, equinox will occur on Tuesday, March 20 ...The first day of spring is Tuesday, and there's snow in the forecast. Of course.Washington PostEverything You Need to Know About the Spring Equinox: When It Is and Why We Follow ItPEOPLE.comThe spring equinox is Tuesday: 6 things to know about the first day of springVoxCincinnati.com -fox8.comall 65 news articles »