The longest day of the year for the Northern Hemisphere takes place on Wednesday morning or Tuesday night, depending on where you are.
But, what exactly does it mean?
Simply put, it’s when the sun’s rays, due to Earth’s 23.5° tilt, are directly over the Tropic of Cancer, the furthest north they go all year. They’ll be directly over the Tropic of Cancer, or 23.5° north in latitude, at 12:24am EDT on Wednesday morning, or Tuesday night at 9:24pm PDT.
It marks the official, astronomical start of summer.
Between Wednesday and December 21st, the date of 2017’s Winter Solstice, daylight will dwindle in the Northern Hemisphere as Earth tilts increasingly in the opposite direction over the next six months.
Enjoy the longest day of the year, maybe with one of these celebration ideas!
For WeatherNation: Meteorologist Chris Bianchi