Which season is the coldest in a year?

According to meteorological statistics, the two coldest solar terms "Great Cold" and "Slight Cold" are both in this month. As the saying goes, "the cold is a little cold" is to describe the degree of cold.

From the monthly average minimum temperature distribution of 65438+ 10, it can be seen that the average minimum temperature in most areas north of the Yangtze River in China is below 0℃, and the monthly average temperature in the north-central part of Northeast China and the central and eastern Inner Mongolia is below -22℃, and even reaches -30℃ in some places, which confirms the saying that "March 949 walks on the ice".

There has been controversy about which of the two solar terms, Great Cold and Slight Cold, is colder. More than 2000 years ago, among the 24 solar terms, our ancestors distinguished the two solar terms representing cold by their size, just to show different degrees of cold. "Give time to pass the exam? Shi Tian quoted Li San Zong Yi as saying: "Great cold is the middle, and the upper form is slight cold, so it is called Great Cold ... The extreme of cold is called Great Cold. "Looking at Wen Siyi, the great cold should be colder than the slight cold.

There is also a saying that "slight cold is better than severe cold", which means that slight cold is colder than severe cold. Because "Jiujiu Song" thinks it is a little cold, according to the saying that "cold is in Sanjiu". The slight cold lasts for *** 15 days, of which 12 days are on "March 9 and April 9", so it is inferred that the temperature is the lowest during the slight cold period.