2. beginning of winter is the 19th solar term among the 24 solar terms. bucket handle points to the northwest, and the solar longitude reaches 225, and it is in the seventh and eighth days of the Gregorian calendar 1 1 month every year. 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 anger begins to close, and everything enters a state of recuperation and collection. Its climate also gradually changes from dry autumn to rainy and cold winter.

3. After beginning of winter, the sunshine time will continue to shorten, and the midday sun height will continue to decrease. Because there is still a certain amount of 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.