4 Types of Season

Summer or summertime is the hottest and brightest of the four temperate seasons, occurring after spring and before autumn. At or centered on the summer solstice, daylight hours are the longest and darkness hours are the shortest, with day length decreasing as the season progresses after the solstice. The earliest sunrises and latest sunsets also occur near the date of the solstice. The date of the beginning of summer varies according to definition, climate, tradition, and culture. When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and vice versa.

Spring is one of the four temperate seasons, falling between winter and summer. It's characterized by warmer temperatures, increasing daylight hours, and the renewal of plant life with blooming flowers. In the Northern Hemisphere, spring typically starts around the March equinox (March 20 or 21) and ends with the summer solstice (June 21 or 22).

Fall, also known as autumn, is one of the four seasons, transitioning from summer to winter. In the Northern Hemisphere, it typically begins with the autumnal equinox in September and ends with the winter solstice in December. In the Southern Hemisphere, it occurs between March and June. Fall is characterized by decreasing daylight hours, cooler temperatures, and the shedding of leaves by deciduous trees.

Winter is the coldest and darkest season of the year in temperate and polar climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather.