What are the characteristics of spring, summer, autumn and winter?

Spring is the season when everything grows, grass breaks through the ground and buds are in bud. Summer is a hot and rainy season, dark clouds come, showers fall, the sun is like fire, full of green; In the crisp autumn season, leaves fall from the branches, and flocks of geese fly south in a herringbone; Winter is a cold and bleak season, and thousands of miles are frozen.

The formation of four seasons and the division of twenty-four solar terms;

The earth revolves and rotates around the sun all the time, but the axis of the earth is not perpendicular to the orbital plane, so it will cause the sun to move on the tropic of cancer, thus forming the four seasons. Spring is the earliest season of the year. It begins in early spring and ends in the long summer. When the temperature is higher than 22 degrees, it is long summer. Summer will cause hot weather in most areas, leading to water shortage. Autumn begins in early autumn and ends in early winter. Winter begins in early winter and ends in early spring.

There are 24 solar terms in a year, namely: beginning of spring, Rain, Creeping, Vernal Equinox, Qingming, Grain Rain, Long Summer, Xiaoman, Mang, Summer Solstice, Xiaoshu, Dashu, beginning of autumn, Chushu, Bailu, Autumn Equinox, Cold Dew, First Frost, beginning of winter, Primary School, Heavy Snow, Winter Solstice, Slight Cold and Severe Cold.

In order to facilitate memory, the ancients changed the twenty-four solar terms into a poem: Spring rains shock spring and clear valley days, and summer is full of summer. Autumn dew, autumn frost, little snow in winter and cold in winter. There is no change in the second quarter of each month, with a difference of one or two days at most. The first half of the year is June 2 1 day, and the second half is August 23. In many places in China, the duration of spring, summer, autumn and winter is different because of different regions, climates and latitudes, and the date when each place enters the season will not be exactly the same.