1)Summer is one of the four seasons and begins on the day of the Summer Solstice and ends on the day of the Autumnal Equinox.
2)When it is Summer in the Southern Hemisphere, it is Winter in the Northern Hemisphere, and vice versa.
3)Summer occurs because of the way the earth is tilted toward the sun. The hemisphere that is tilted in the direction of the sun experiences Summer and the hemisphere that is tilted away from the sun experiences Winter.
4)Summer is the whole months of December, January, and February in the Southern Hemisphere, and the whole months of June, July, and August in the Northern Hemisphere.
5)In the United States, the Fourth of July and Labor Day are celebrated during the summer months.