Not the same day.

Rising winter is usually around November 7 and winter solstice is usually around December 22 every year. After the winter solstice, sunlight hours will continue to shorten and the height of the sun at noon will continue to decrease.

Winter ordinary prevalence of northeasterly and northerly winds, the temperature gradually decline, due to the surface of the stored heat there is still a certain amount of energy, so generally the early winter period is not very cold; with the passage of time, the strong cold air southward frequently, and across the South Ridge, the weather is getting colder and colder, in the northern region, before the winter has been very cold.

The winter, means that the anger began to close storage, everything into the rest, collection state. Its climate is also from the autumn less rain and dry to the rainy and cold winter climate change. After the winter sunshine time will be slowly shortened, the height of the sun at noon will also be slowly reduced. Winter is not only the first solar term of winter, but also a seasonal node that is more important to our folklore.

Seasonal division

1, the method

The traditional division of the four seasons in China is based on the four seasons of the twenty-four seasons "four Li" as the beginning of the four seasons. The winter season begins with the first day of winter and ends before the next day of spring. Winter, that is, "the end of the collection of all things also" means; winter, means that anger began to be closed, all things into the state of recuperation, collection.

2, temperature method

Modern scholars Zhang Bao Koon put forward a new seasonal standard, the average temperature (the average of five consecutive days of temperature) steadily fell below 10 ℃ for the beginning of winter, steadily rose to 22 ℃ as the beginning of summer; the average temperature of the 10-22 ℃ in the period of spring or autumn.

The four seasons by the temperature method, the average daily temperature for five consecutive days falls steadily to below 10 ℃ as the beginning of winter, to five consecutive days the average daily temperature rises steadily above 10 ℃ as the end of winter. The temperature method of winter means that the temperature has dropped steadily to below 10 ℃, indicating that the weather is cold.