First Day Of Summer 2024 Celebrations In Usa. Astronomers consider this the beginning of the summer in the northern hemisphere, nasa said. Get those swimsuits and sunglasses ready for the first day of summer.

Awed by the great power of the sun, civilizations have for centuries celebrated the first day of summer otherwise known as the summer solstice, midsummer (see shakespeare), st. The first official day of summer astronomically for 2024 is thursday, june 20, which is when the northern hemisphere has the longest day of the year, according to the.