What is the coldest weather in winter?

Climate characteristics: "Great Cold" occurs in the second half of Gregorian calendar 1 month and the second half of lunar calendar1February, which is the last solar term of the lunar year. It means that the coldest time of the year has arrived, but the temperature gradually rises from low to high, often higher than the last solar term. The average temperature is -2℃, the lowest temperature is generally-65,438+04-65,438+07℃, and the extreme lowest temperature can be. The lowest temperature in half a year appears in this solar term. The maximum frozen soil depth is 30-40cm, which is often the solar term with the deepest frozen soil in a year. Precipitation is scarce, with precipitation less than 1mm in half of the years and more than 5mm in some years. There are often cold waves and windy weather. Wan Li's icy northland scenery is particularly prominent in this solar term.