A little cold or a big cold?

According to the records of meteorological data in China, slight cold is the lowest temperature solar term, and the temperature of great cold is lower than slight cold only for a few years. As the saying goes, "cold is in Sanjiu", and this "Sanjiu" is in the slight cold solar terms. A slight cold marks the beginning of the coldest day of the year.

Winter 999 is counted from the winter day of the solstice, and every nine days is a "nine". After counting "19", count "29" until 998 1 day, which is called "Winter 999" and also called "Count Nine". This is a folk solar term used to reflect the temperature change in winter since ancient times. As soon as the winter solstice arrives, we will enter what we often call "counting nine cold days" Count to nine and it's all over, and the weather is warm.

Extended data:

Slight cold is the 23rd of the 24 solar terms in a year. During the slight cold, the sun's vision runs to 285 degrees of the yellow meridian, that is, 65438+1October 5 or 6 in the Gregorian calendar. After the slight cold, the climate in China began to enter the coldest time of the year. As the saying goes, cold air has been cold for a long time. At this time, the weather is cold, and the great cold is not extreme, so it is called slight cold.

In fact, climate observation data show that the temperature of this solar term is the lowest, and the "March 9" in the middle of winter is basically within this solar term, so there is a saying that "a slight cold is better than a severe cold". Two old folk proverbs, "A slight cold, freezing into a ball" and "Walking in the street, losing money", all describe the coldness of this solar term. Because the temperature is very low, wheat, fruit trees, melons and vegetables, livestock and poultry are particularly vulnerable to freezing injury.