Which is colder, slight cold or severe cold?

It is even colder during the slight cold.

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.

Phenological phenomenon of slight cold solar terms

In ancient China, the "slight cold" was divided into three stages: "First-class Yanbei Township, second-class magpies started their nests, and third-class pheasants started their lives." The ancients believed that the geese among migratory birds migrated along the yin and yang, and at this time, the yang had moved, so the geese began to migrate north.

At this time, magpies can be seen everywhere in the north, feeling the yang and starting to build nests; The word "pheasant" means singing. As April 9th approaches, pheasants can sing.

Refer to the above? Baidu encyclopedia-slight cold