First Day Of Summer 2024 Usa Calendar. — the first day of summer in the northern hemisphere will be on june 20, 2024. The first day of summer arrives with the solstice this year on thursday, june 20, 2024 at 4:51 p.m.
— summer 2024 starts on thursday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth’s axis having reached its furthest tilt and begins to change directiion back. The first day of summer in the united states varies depending on the year and location.