Severe cold or slight cold?

A slight cold means entering the coldest December of the year. Twenty-four solar terms say, "Slight cold is December Festival. The cold was still small at the beginning of the month, so it was cloudy. It will be big in half a month. " 1February is a slight cold in the first half and a severe cold in the second half. According to the ancients' explanation of slight cold and great cold, great cold is better than slight cold.

Extended data:

According to China's long-term meteorological records, in the northern region, the coldest time of the year is the middle of June 5438+ 10 in the Gregorian calendar every year, which is just within 15 days of the slight cold solar terms, so the slight cold is colder than the great cold.

However, for most parts of southern China, the coldest time in a year is at the end of 65438+ 10, and the severe cold solar term generally starts at the end of 65438+ 10, that is, at the end of 65438+ 10, so the severe cold is colder than the slight cold.

The slight cold in the northern region is colder because there is relatively little "residual heat" on the surface, which has been released by the slight cold, but at this time, the days are still short and the nights are long, and the cold air is strong, so that the temperature is minimized. In the great cold, the sun's light and heat increased slightly, so the temperature also increased slightly.

The northern agricultural proverb says: "A slight cold is better than a severe cold, which is common but not rare." Prove that this is a very common phenomenon.

The temperature in the south is greatly influenced by "waste heat".

However, the surface of the southern region is relatively hot, and its "residual heat" to slight cold solar terms have not been released, so the temperature has not dropped to a minimum. In the severe cold, the "waste heat" on the surface of the earth is exhausted and it is freezing badly. At this time, a little more sunlight and heat than slight cold will not play much role, and the temperature will be minimized.

The folk custom of "Counting Nine" also reflects this climate difference. "Count Nine" starts from the winter solstice and counts backwards every nine days. The first nine days are called "September 19" or "the first nine days", followed by "February 29th", "March 31st" and "April 9th" ... all the way to "September 9th", ***8 1 day, and the end is called "September 9th".

Slight cold usually lasts from February 29th to March 9th. The northern folk proverb says that "slight cold is February 29th, shivering with cold".

The great cold usually lasts from April 9 to May 9, and the southern folk proverb says: "On April 36, you should close your door and guard the stove; 5945, open the door and find a warm place. "

China News Network-Will today's slight cold be colder than the great cold?