What's the date of the great cold?

The annual Gregorian calendar is 65438+1October 20th -2 1.

The Great Cold is the last of the 24 solar terms. Fighting refers to ugliness; The solar meridian reaches 300; Celebrate on the calendar of 65438+1October 20-2 1 every year. Great cold, like slight cold, is also a solar term indicating the cold weather. Great cold refers to extremely cold weather. The coldest time in the south is the great cold solar term.

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 the northwest wind and the constantly supplemented cold air, China will have a sustained low temperature.