Why is slight cold colder than cold?

Slight cold refers to the cold air accumulated for a long time, which means that the weather is cold but not extreme. Like great cold, slight summer heat, great summer heat and intense summer heat, it is a solar term indicating temperature change.

Slight cold is the 23rd solar term among the 24 solar terms, the 5th solar term in winter, the end of the second month of the dry calendar and the beginning of the ugly month. Fighting fingers; The meridian of the sun is 285; It is celebrated every year on June 5-7 of 65438+ 10 in Gregorian calendar. The slight cold solar term is characterized by cold, but it is not extremely cold. After the winter solstice, the cold air frequently goes south, and the temperature continues to drop, and the temperature drops to the lowest during the slight cold and severe cold in a year.

North-South Difference of Slight Cold Solar Terms

According to the statistics of climatic data, the coldest time in most parts of northern China is June 5438+1mid-October (June 5438+00-20); The annual slight cold solar term starts from 65438+1October 5-7, one solar term is about 15 days, and the middle section is just within the slight cold solar term; So for most parts of the north, slight cold is indeed colder than severe cold.

But for most parts of the south, it is the coldest in the great cold solar terms; The severe cold solar term generally starts from 65438+1October 20th (65438+1late October), which is the coldest time of the year in the south.

Reference to the above content: Baidu Encyclopedia-Slight Cold