What does light snow mean in solar terms?

Light snow means getting colder and colder, and more and more precipitation.

Light snow is the twentieth solar term among the twenty-four solar terms and the second solar term in winter. The time is Gregorian calendar1October 22 or 23 165438, that is, when the sun reaches 240 degrees of the yellow meridian. Light snow is a solar term reflecting precipitation and temperature, and it is a solar term with high frequency of cold wave and strong cold air activity.

The next solar term of "light snow" is "heavy snow". Both "light snow" and "heavy snow" are easy to think that it is a problem of snow quantity, but it is not. Do you know what "light snow" means in the light snow solar term? How are light snow, medium snow and heavy snow divided?

Light snow solar terms reflect precipitation and temperature, so the "light snow" of light snow solar terms does not mean that there will be a small amount of snow on this day, but that the cold and precipitation will gradually increase. After entering the light snow solar term, cold air from Siberia and Mongolia Plateau will frequently go south, affecting China. In addition, the days are getting shorter and shorter, the nights are getting longer and longer, and the heat absorbed by the surface is getting less and less, so the cold will gradually increase.

It may not snow when there is light snow in the solar terms, but the probability of precipitation will increase and the precipitation will gradually increase. Meteorological precipitation refers to the condensation of water vapor falling from the atmosphere, which can be solid or liquid. Rain, snow, hail, graupel, dew and frost are all precipitation. The size of snow is divided according to meteorological precipitation. The precipitation within 24 hours is less than 2.5 mm, which is light snow, and the precipitation is more than 2.5 mm and less than 5 mm, which is heavy snow.