When is the characteristic of the severe cold season?

1, the severe cold solar term is 65438+20201October 20th. The Great Cold is the last of the 24 solar terms. Fighting refers to ugliness; The longitude of the sun is 300; Gregorian calendar 65438+1October 20th -2 1. Like slight cold, great cold is also a solar term indicating the degree of cold weather. In some parts of China, severe cold is not as cold as slight cold, but in some years and a few coastal areas, the lowest temperature in the whole year will still appear in the severe cold solar terms. Slight cold and severe cold are the periods with the least rainfall in a year.

2. Seasonal characteristics of severe cold. During the severe cold solar term, the atmospheric circulation is relatively stable, and the adjustment period of circulation is about 20 days. When this circulation is adjusted, there will often be a wide range of rain and snow weather and strong winds to cool down. When the west of 80 degrees east longitude is a long wave ridge and East Asia is a coastal trough, under the influence of northwest wind and constantly supplemented cold air, China will have a sustained low temperature. Like slight cold, great cold is also a solar term indicating the degree of cold weather. Modern meteorological observation records show that in some areas of China, severe cold is not as good as slight cold, but in some years and a few coastal areas, the annual minimum temperature will still appear within the severe cold solar terms. Therefore, it is necessary to continue to do a good job in the cold protection of crops, especially to protect livestock from wintering.