Beginning of winter is one of the twenty-four festivals of the lunar calendar and one of the traditional festivals in China. The time point is between the 7th and 8th of 1 1 month in the Gregorian calendar every year, that is to say, the sun is 225 at the yellow longitude. After the start of winter, the duration of sunshine at noon will be shortened, and the height of the sun will continue to decrease. People in China regard Lidong as the beginning of winter.
Beginning of winter, the annual Gregorian calendar 1 1 month 7-8. Beginning of winter is a seasonal solar term, which means that it has entered winter since then. Standing, building the beginning; In winter, everything will be collected in the end. Beginning of winter means that life begins to be closed, everything enters a state of recuperation and collection, and its climate changes from dry autumn to rainy and cold winter.
Climatic characteristics
After beginning of winter, the sunshine time will continue to shorten, and the height of the sun will continue to decrease at noon. In winter, northeast winds and north winds prevail, and the temperature drops gradually. 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, strong cold air frequently goes south and crosses Nanling, and the weather is getting colder and colder. In the north, it was already very cold before beginning of winter.
During the solar term in beginning of winter, the temperature dropped obviously, and the trend of temperature drop accelerated with the strengthening of cold air. People are used to the cooling in the north. Since the end of 10, heating has been provided successively. Fortunately, people still have a shelter from the cold. For people in the middle and lower reaches of the Yangtze River in late autumn and early spring, the average temperature is generally 12C to 15℃. If you encounter strong cold air and go south quickly, sometimes the temperature can be close to 8- 10℃ or even more in less than one day (the above contents are for reference only).