First Day Of Summer 2024 Usa Today. The 2024 summer solstice arrives june 20 at 4:51 p.m. The celestial event signifies the first day of winter, astronomically.

It’s the earliest solstice since june 20, 1796, when george washington was president and there were only 16 states in the union. The first day of summer this year is thursday, june 20, 2024, per the almanac.