Beginning of winter is the nineteenth of the twenty-four solar terms. Bucket handle points to the northwest, and the longitude of the sun reaches 225. Every year, the solar calendar165438+1October 7-8. Beginning of winter is a seasonal solar term, which means that it has entered winter since then.

Stand still, build the beginning; In winter, everything will be collected in the end. Beginning of winter means that anger begins to close and everything enters a state of recuperation. Its climate has gradually changed from dry autumn to rainy and cold winter.

After beginning of winter, sunshine hours will continue to be shortened. At noon, the height of the sun continued to drop. Because there is still some energy in the heat stored on the surface, it is generally not very cold in early winter; As time goes by, cold air activities become more and more frequent, and the downward trend of temperature accelerates.

Beginning of winter is the first solar term in winter, representing the beginning of winter. Beginning of winter is also one of the seasonal nodes that China people attach great importance to. This is a time to enjoy a bumper harvest and recuperate. Through the rest in winter, I look forward to a rich life in the coming year. Beginning of winter is one of the "four seasons and eight festivals" in ancient society, and it is a very important festival. In some parts of China, there are customs such as ancestor worship and drinking.

The traditional division of the four seasons in China is based on the "four stands" of the 24 solar terms as the starting point of the four seasons. Winter begins in beginning of winter and ends before the next beginning of spring. Winter, that is, the meaning of "finally, everything is collected"; Beginning of winter means that anger begins to close and everything enters a state of recuperation.

At present, it is often divided according to temperature change, which is one of the climatic factors. The division method is the "weather average temperature" method of modern scholar Zhang Baokun. According to the weather average temperature method, the four seasons are divided, starting when the weather average temperature (the average temperature for five consecutive days) is lower than 10℃ and ending when the weather average temperature is higher than 10℃. Winter means that the temperature has steadily dropped below 10℃ and the weather is cold.