Characteristics of the four seasons

1. Spring is the first season of the year, when the ice and snow melt for the first time and everything recovers. In this warm and cold season, everything has just begun, everything is so fresh, everywhere is full of vitality, everywhere is full of flowers.

Summer is the second season of the year, the sun is like fire, and the enthusiasm is like fire. Heavy rains often mess up the whole city. After a while, the sun dried up the rain and made people feel groggy all day.

Autumn is the third season of the year, with a cool breeze and crisp autumn. Autumn is always cool and pleasant, and there is a feeling of rustling when the autumn wind blows. In summer, the dry air loses its sultry weight, and it is refreshing to take a deep breath of clean and cool air.

4. Winter is the last season of the year, and it is snowy and snowy in Wan Li. Every winter comes, everyone is so cold that they want to stay under the covers. Flowers, trees, fish, insects, birds and animals have all disappeared.

Extended data:

The four seasons on the earth are first manifested as an astronomical phenomenon, which is not only the periodic change of temperature, but also the periodic change of the length of day and night and the height of the sun. Of course, the change of the length of day and night and the height of the sun at noon determines the change of temperature.

The standard of entering spring: the daily average temperature is higher than 10 degrees Celsius for five consecutive days;

The standard of entering summer: the average daily temperature is higher than 22 degrees Celsius for five consecutive days;

Autumn standard: the average daily temperature is lower than 22 degrees Celsius for five consecutive days;

Winter standard: the average daily temperature is lower than 10 degrees Celsius for five consecutive days.

References:

Baidu encyclopedia-four seasons