What are some tips about Beginning of Winter?

1. Beginning of Winter is the 19th solar term among the 24 solar terms, and it is also the first solar term in winter. Its intersection time is on November 7 or 8 every year, when the solar longitude reaches 225° The beginning of time.

2. It is said in the almanac: "The northwest dimension of Douzhi refers to the beginning of winter. Winter is the end. At the beginning of winter, all things are finally completed, so it is called the beginning of winter." "Collection of the Seventy-two Hours of the Moon Order" Zhongze said: "Li is the beginning of the establishment. Winter is the end and the collection of all things." In ancient my country, it was customary for the people to regard the beginning of winter as the beginning of winter. In fact, our country has a vast territory. Except for the coastal areas of South China, which has no winter all year round, and the Tibetan Plateau, which has long winter and no summer, winter does not all start at the same time on the Beginning of Winter.

3. If according to climatology, the average temperature in the second half of the year drops below 10℃ as the classification standard for winter, then the saying "the beginning of winter is the beginning of winter" is basically consistent with the climate law of the Huanghuai region. In the northernmost areas of our country, Mohe and the areas north of the Daxinganling Mountains, winter has already entered in early September, and the Beijing area is already experiencing winter in late October. However, winter in the Yangtze River Basin does not really begin until around the "light snow" solar term. . But no matter what, after the beginning of winter, the northern hemisphere receives less and less solar radiation, but because there is still a certain surplus of heat stored on the surface in the second half of the year, it is generally not too cold yet. When the weather is clear and windless, there is often warm and comfortable "Indian Spring" weather, which is very pleasant. However, at this time, the cold air from the north also has strong power, often invading south frequently, sometimes forming cold wave weather with strong winds, cooling and accompanied by rain and snow.

4. Judging from the average conditions over many years, November is the month with the most cold waves. Severe cooling, especially abnormally warm and cold weather, has serious adverse effects on people's lives and health. Therefore, you should pay attention to the weather forecast during this solar term, and keep warm and prevent cold in time according to weather changes.