What are the solar terms characteristics of slight cold?

The slight cold solar term is characterized by cold, but it is not extremely cold.

Slight cold is the 23rd solar term in 24 solar terms, and winter is the 5th solar term. When cold air accumulates for a long time, it becomes cold. Slight cold means that the weather is cold but not extreme. Like severe cold, intense heat, intense heat and intense heat, it is a solar term indicating temperature change. According to China's long-term meteorological records, the slight cold solar terms in the northern region are colder than the severe cold solar terms; But for most parts of the south, the big cold solar terms are colder than the small ones.

During the slight cold solar term, the East Asian trough developed the strongest and most stable, the Mongolian cold high and Aleutian low also reached the strongest and most stable, and the ridge scale of the westerly trough reached the maximum, which matched the strongest westerly intensity. The cooling process of cold air is frequent in the slight cold season, but few of them reach the cold wave standard.

Meteorological changes of slight cold solar terms;

During the slight cold solar term, the East Asian trough developed the strongest and most stable, the Mongolian cold high and Aleutian low also reached the strongest and most stable, and the ridge scale of the westerly trough reached the maximum, which matched the strongest westerly intensity. The cooling process of cold air is frequent in the slight cold season, but few of them reach the cold wave standard. There is a saying in northern China that "slight cold is better than severe cold, which is common but not rare", meaning that the solar terms of slight cold are colder than those of severe cold, which is nothing unusual.

Slight cold usually occurs from February 9th to March 9th, which is the coldest time of the year in northern China. After the slight cold, the temperature of heavy cold rose slightly. The coldest in southern China is in April and September, which is colder than in March and September. In April and September, it was the great cold solar term, and the great cold in the southern region was colder than the slight cold. There is a folk saying that "it's 239 when it's cold, and it's shivering with cold", which shows the cold degree of solar terms.

During the slight cold season, most parts of China have entered a severe cold period, with frozen soil and rivers frozen. In addition, the cold air in the north keeps going south and the weather is cold. People call it "counting nine cold days" Although the south of China is not as cold as the north, the temperature drops obviously. The coldest time in the south is slight cold and severe cold, between rain and fright. It is dry and cold when it is a little cold, and it is wet and cold after the rain.