What is the story of Xiaoxue solar terms?

1. What is the solar term of Xiaoxue? Xiaoxue is the twentieth of the twenty-four solar terms. 165438+1On October 22nd or 23rd, when the sun reaches 240, it is called the light snow solar term. At this time, the sun is at-2016 declination. On this day, Beijing's daylight saving time is only 9 hours and 49 minutes, and the height of the sun at noon is only 29 50'. Entering this solar term, the northwest wind began to become a frequent visitor in China, and the temperature gradually dropped below 0℃, but the earth was not too cold. Although it began to snow, the amount of snow was not large, so it was called light snow. There will be large-scale gale and cooling weather in eastern China. Light snow solar term is a solar term with high frequency of cold wave and strong cold air activity. When strong cold air affects, it is often accompanied by the first snow in winter. The southern part of North China is expected to usher in the first snowfall of the light snow solar term this winter. On 20-22, affected by strong cold air, there will be a large-scale rain, snow and strong wind cooling process in the central and eastern regions, and the cooling range in Huanghuai area can reach 12- 18℃, and the rain in the southeast of northwest China, south-central North China and Huanghuai will turn to sleet or snow. What is the solar term behind the light snow solar term? Heavy snow is the 2nd1solar term in 24 solar terms, which falls on February 7th or 8th of 65438 in the Gregorian calendar every year, and it is also the end of the dry calendar and the beginning of next month. At that time, the sun will reach 255 degrees.

2. Heavy snow means colder weather, and the possibility of snowfall is greater than that of light snow. It doesn't mean that there must be a lot of snowfall. On the contrary, after the heavy snow, the precipitation in various places decreased further. The origin of the light snow solar term is the twentieth solar term among the twenty-four solar terms. On June 22nd or 23rd165438+1October 22nd, it means that it starts to snow and the amount of snow is small. "Xiaoxue" is in the second half of the solar calendar 1 1 and the second half of the lunar calendar in October. "Light Snow" is a festival that reflects weather phenomena. The ancient book "Qunfangpu" said: "A light snow will snow when it is cold, but the ground is not cold and the snow is not heavy." That is to say, due to the cold weather, in the "light snow" festival, the form of precipitation changed from rain to snow, but at this time, because the ground is not very cold and the amount of snow is not large, it is called light snow. Xiaoxue is the twentieth of the twenty-four solar terms. The starting point is 165438+1October 22 or 23 in the Gregorian calendar every year, and the sun is at-20 declination16, reaching 240 longitude. There is a saying in "Twenty-four solar terms": "In the middle of June of 5438+00, it rained and was blown thin by the cold, so it condensed into snow. The words of the villain are not prosperous. " During this period, the weather gradually became cold, and the average first snow period in the middle and lower reaches of the Yellow River was basically the same as the Light Snow Festival. Although it began to snow, the amount of snow was generally small, and it was frozen at night and turned around by day. If the cold air is strong and the warm and humid airflow is active, it may snow heavily.