Which solar term is the coldest in winter and why?

Since there is the hottest solar term in a year, there is the coldest solar term. The hottest solar term is the summer solar term, so which is the coldest solar term? Referring to the hottest solar term in summer, we can guess that the coldest solar term should be Great Cold, and indeed Great Cold is one of the coldest solar terms, and the other is Slight Cold. Why are these two solar terms the coldest? The following small series takes you to find out.

As we all know, the hottest time period is called "dog days" and the coldest time period is called "dog days". What does "three or nine days" mean? It means counting from the winter solstice to the ninth day, counting to "19", then counting down, counting to "29" on the ninth day, and so on until the cold ends. The weather won't keep getting cold. The peak of cold is in "March 9th" and "April 9th", between which there are slight cold and severe cold solar terms, that is, these two solar terms are the coldest solar terms in a year. These two solar terms belong to winter solar terms.

First of all, let's learn about the climate related to the slight cold solar terms. The arrival of the slight cold solar term every year means that the coldest period of the year begins. After the slight cold solar term, the weather will get colder and colder, and the temperature will pick up after the great cold. The climatic characteristics of the slight cold solar terms are: the temperature keeps falling, the snow and snow hit, and sometimes there will be rain and snow. This is a very difficult time for all living things, so we should keep warm for our animals and plants at the same time. Otherwise, it will be difficult for them to get through this cold period. So you may not understand how cold it is. Then, let's take a look at the temperature in the slight cold season. The lowest temperature in the north and northeast will be below -50 degrees; Xinjiang, Inner Mongolia and other regions have dropped to a minimum of -20 degrees; Most parts of the south are around 5 degrees, which is very cold for the wet and cold climate in the south. In any case, we must keep warm during this period and pay attention to avoid freezing crops.

Now let's talk about the climate of the great cold solar terms. The climatic characteristics of the great cold solar terms are similar to those of the slight cold: frequent rain and snow, and constant gale and cooling weather. But, literally, it seems that a big cold will be colder than a small one? Otherwise, slight cold is actually colder than great cold. Because the slight cold is the coldest "March 9" period in a year, it will be even colder. In terms of temperature, the great cold is a little higher than the slight cold, but it will not be much warmer. As far as the southern region is concerned, the average temperature in severe cold is about 5 degrees higher than that in slight cold, which is enough to prove that the temperature in severe cold season is on the rise.

Of course, the weather is different every year. Whether it is a slight cold or a severe cold depends on the weather in that year. One thing is certain, whether it is a slight cold or a severe cold, it will be very cold. Even in comparison, there will be a relatively high temperature, but it is also unbearable for our bodies. We must keep warm!