Yes, winter is the coldest season in a year, and the coldest season is between winter solstice and severe cold. The solstice in winter is also called "cellar wine" among the people in China. People are used to counting nine from this day and counting nine every nine days. The first nine days are called "September 19th", and the first day of the winter solstice is "September 19th". The second nine days are called "Erjiu". By analogy, a * * * has nine "9s", and after 998 1 day, the weather will be warm. Among the people, there is also a ballad that vividly describes the law of weather change from early winter solstice: "1929, I can't reach it;" 3949, frozen cats and dogs; In 5969, look at the willows across the river. The 79th river opened (the ice in the river began to melt); Eighty-nine geese are coming; 1999 The weather is cold and spring is blooming. "
In China, it should be three days before and after the Great Cold in the 24 solar terms. According to the China lunar calendar, it should be the coldest days of the year, but with the influence of global warming and regional factors, it seems not so accurate.