What is the phenomenon of this year's cold winter?

The cold winter is called a climate phenomenon. Winter is a meteorological concept. Meteorology, according to the average temperature of the whole winter in 65438+February, 65438+ 10 and February, the cold winter is judged. The phenomenon of cold and warm in winter can be divided into three categories: warm winter, cold winter and normal winter. When the average temperature in a certain area from 12 to February of the following year is more than 0.5℃ higher than the average temperature in the same period of the year, it is called warm winter, and when it is lower than 0.5℃, it is called cold winter.

Winter introduction:

As one of the four seasons, the 24 solar terms "beginning of winter" are traditionally used as the beginning of winter. In winter, life is closed and everything enters a state of recuperation. In winter, that is, "everything will be harvested in the end", after beginning of winter, everything began to be hidden. Li Si's division of four seasons reflects many characteristics such as climate and phenology. The four seasons are often divided according to the temperature change, and the method of "weather average temperature" proposed by modern scholar Zhang Baokun is adopted. In the four seasons divided by the weather average temperature method, the average daily temperature is equal to or lower than 10 degrees Celsius for five consecutive days, which is regarded as entering winter.