What is the coldest solar term in winter?

The coldest solar term in winter is the great cold.

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. Great cold, like slight cold, is also a solar term indicating the cold weather. Great cold is the coldest solar term in a year. According to China's long-term meteorological records, there is no slight cold in the great cold solar terms in the northern region; But for most parts of the south, April and September are the coldest, so the big cold solar terms are colder than the small ones.

Extended data:

The Great Cold is the last of the 24 solar terms. Every year, the solar calendar is 65438+1October 20, when the sun reaches 300 degrees of the yellow meridian, it is called "great cold", from March 9 to April 9. At this time, the cold wave frequently goes south, which is the coldest period of the year. There is a folk saying that "a slight cold is the most important thing, and it is cold without wind."

Great cold refers to extremely cold weather. Although the setting sun in the northern hemisphere is the most severe during the winter solstice solar term, the coldest time in a year is the slight cold and great cold solar terms after the winter solstice solar term, especially the great cold solar term; This is because after the winter solstice, the direct sunlight point will gradually move northward, but in the following time, the direct sunlight point will always be in the southern hemisphere, and the heat in the northern hemisphere will always be lost. The heat absorbed during the day is still less than the heat released at night. Therefore, after the winter solstice, the temperature in the northern hemisphere will continue to decrease, reaching the lowest point in the great cold solar term, and the great cold will become the coldest solar term in a year.