However, why is today the first day of spring and why is it limited to the Northern Hemisphere?   

The Latin terms aequus and nox, which mean equal night, are the source of the word equinox itself.  

There are just the fall and vernal equinoxes in a year  

The Latin terms aequus and nox, which mean equal night, are the source of the word equinox itself.  

Typically, it occurs on March 19, 20, or 21  

According to the Farmer's Almanac, a spring equinox on March 21 is unusual.  

For the entire 21st century, there hasn't been one in the continental United States, and that number won't rise until 2101.  

Although March 19 is the date of the 2024 vernal equinox, meteorological spring really arrived at the beginning of the month.   

There are two kinds of seasons, according to NASA: astronomical and meteorological.  

Sean Ono Lennon’s 2024 Oscars Speech Wishes Mom Yoko Happy Mother’s Day 

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