When Is The Last Day Of Summer 2024 Usa. Calendar of holidays and weekends for the summer of 2024 for united states. Fall begins with the autumnal equinox, sunday, september 22, 2024,.

As a meteorological season, the last day of summer is aug. This year, the summer solstice was celebrated on june 20, and summer lasts an average of 93.6 days, according to.