The specific time of slight cold and severe cold in 2022
The solar terms of severe cold in 2022 are: 65438+1October 20th 10: 30 in Gregorian calendar, and1February18th in lunar calendar.
What does slight cold mean? The slight cold is the 23rd solar term in 24 solar terms, and the 5th solar term in winter is the 5th or 6th day of 65438+ 10 every year, when the longitude of the sun is 285 degrees. The arrival of the slight cold season means that China begins to enter the coldest day of the year. As the saying goes, cold air has been cold for a long time. The slight cold is the 23rd solar term, between 65438+1October 5-7, and the sun is located at 285 degrees of the Yellow Meridian. After entering the slight cold, the climate in China began to enter the coldest period of the year.
Slight cold is the season that reflects the temperature change, cold is cold, and small is the degree of cold. Literally, slight cold has not reached the coldest degree, and severe cold should be the coldest, but in most parts of China, slight cold is the coldest time of the year. "Twenty-four solar terms" said: "December solar terms, the initial cold is still small, so the clouds. It will be big in half a month. " In other words, in the Yellow River basin, the great cold is colder than the slight cold.
Because the slight cold is still in the last few days of February 9, it will take a few days for the slight cold to enter March 9, and the slight cold in winter corresponds to the slight heat in summer, so it is called slight cold.
Others say that the weather is cold at this time, and the great cold has not reached its extreme, so it is called slight cold.
What does the great cold mean? It is about 65438+1October 2 1 every year. Great cold is a solar term that reflects the process and degree of temperature rise and fall.
Initially, during the winter solstice in the northern hemisphere of China, the sun directly shines on the Tropic of Capricorn. The shortest day and the longest night. The ground receives the least light and heat, and the weather should be the coldest. However, the actual cooling is during the solar terms of slight cold and severe cold from winter to the future, which is the so-called "March 9 cold weather". This is because during the Great Cold Festival, although the days are slightly longer than the winter solstice, the days are still shorter and the nights are longer. The heat radiated from the sun to the ground is less than that radiated from the ground to the air, so the temperature keeps dropping. In addition, cold waves from the polar regions, Siberia and the Mongolian Plateau frequently go south, constantly invading vast areas of China and promoting the emergence of the lowest temperature throughout the year.
Great cold, as its name implies, is extremely cold weather. Time-sharing, Time-sharing and Time-sharing quoted Three Rites and Righteousness: "Great cold is medium, slightly cold, so it is called great ... extremely cold, so it is called great cold."
The folk custom of Xiaohan is getting stronger and stronger. People are busy writing Spring Festival couplets, cutting window grilles, going to the market to buy New Year pictures, colored lights, firecrackers, incense and so on, one after another to prepare for the Spring Festival. In terms of diet, mutton hot pot, sugar-fried chestnuts and baked sweet potatoes have become the fashion of Xiaohan. As the saying goes, "three nine make up one winter, and there will be no disease in the coming year", which is the practice of eating mutton to regulate the body in winter. In ancient times, Rugao people attached great importance to slight cold, but with the changes of the times, it has gradually faded, and people can only find some traces in their lives.
Great cold folk custom Great cold is also the last of the 24 solar terms in the whole year. Although the weather is cold at this time, it will not be as cold as it is from heavy snow to winter solstice because it is near spring. At this time, people are busy throwing away old decorations, pickling new year's dishes and preparing new year's goods, because the Spring Festival, the most important festival for China people, is coming. During this period, northerners also have a very important day-Laba, the eighth day of the twelfth lunar month. On this day, people cook a pot of sweet and delicious Laba porridge with whole grains, peanuts, chestnuts, red dates and lotus seeds, which is an indispensable staple food for Chinese New Year.