First Day Of Summer 2024 In Usa. This year's summer solstice will arrive this thursday on june 20 for the northern hemisphere, according to nasa. Hope you've got your pencils ready and your calendars out:

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 farmer’s almanac. The first day of summer in north america is thursday, june 20, 2024.