When did it get cold this year?

Jiaotong University caught a cold in 2023 65438+ 16:00 20231October 20th.

The Great Cold is the last of the 24 solar terms, and it is called "Great Cold" every year when the sun reaches 300 degrees on June 20-2 1 day of the Gregorian calendar. The folk proverb says, "a slight cold is the most important thing, and it is cold without wind." Great cold "refers to extremely cold weather."

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 flow control and constantly supplemented cold air, China will have a sustained low temperature.

traditional custom

The Great Cold is the last of the 24 solar terms. After the severe cold, beginning of spring will usher in a new year's solar cycle. The Spring Festival is just around beginning of spring. As soon as it gets cold, the flavor of the New Year becomes stronger and stronger. The severe cold solar terms often coincide with the end of the year, and some folk customs during the period have more meaning of saying goodbye to the old and welcoming the new. In this solar term, people are busy saying goodbye to the old and welcoming the new, pickling new year's dishes and preparing new year's goods, because the Spring Festival, the most important festival for China people, is coming.

As the last solar term at the end of the year, the Great Cold is a slack season, but everyone is "busy"-busy with the New Year, which is the custom of "welcoming the New Year in the Great Cold". The so-called "welcome in the cold" means that during the period from the cold to the Lunar New Year, there will be a series of activities among the people, which can be summarized into at least ten customs, namely, eating glutinous rice, binge drinking, making teeth, sweeping the dust, pasting windows, tasting bacon, catching a wedding, going to the market and bathing.