What is the slight cold in the twenty-four solar terms?

Slight cold is the 23rd of the 24 solar terms.

Slight cold is the 23rd solar term in 24 solar terms and the 5th solar term in winter. A slight cold marks the official start of winter. Cold air is cold for a long time, and 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. The weather characteristics of slight cold are: it gets cold slowly, before it is too cold. As the saying goes, "cold is in March 9th", and because the March 9th in the middle of winter is basically within this solar term, there is a saying that "slight cold is better than severe cold".

The origin of slight cold:

Slight cold, like severe cold, mild summer heat, severe summer heat and intense summer heat, are all solar terms indicating temperature changes. According to the "Twenty-four Solar Terms", "the cold at the beginning of the month is still small, and half a month is big". In the Yellow River basin, the severe cold is colder than the slight cold, because the slight cold is still in the last few days of February 9, and it will take several days for the slight cold to enter March 9. The slight cold in winter corresponds to the slight heat in summer, so it is called the slight cold.