What Months Is Fall 2024. Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m. Usually, when we talk about the first day of autumn we are referring to the astronomical autumn which is defined by the earth's axis and orbit around the sun.
22, the fall equinox formally heralds in autumn and marks the end of summer in the northern hemisphere. There are technically two days that you could consider as the start of the fall season.
