What's the climate like at the Light Snow Festival?

Characteristics of light snow solar terms: 1, cold air goes south, and the temperature drops sharply. 2. It began to snow in North China and winter in South China. Light snow solar term is a solar term with high frequency of cold wave and strong cold air activity. The arrival of the light snow solar term means that the weather is getting colder and colder and the precipitation is gradually increasing. Generally speaking, the average maximum temperature in North China is 15 degrees, and the average minimum temperature is 5 degrees. This solar term is called light snow because "snow" is the product of cold weather. During this solar term, the climate is not deep and the precipitation is not great, so "light snow" is used to compare the climate characteristics during this solar term.

During the light snow solar term, a relatively stable meridional circulation has been established in East Asia, and low pressure or trough often appears in Siberia. When moving eastward, there will be a large-scale cold air heading south, and there will be a large-scale gale and cooling weather in the southeast of China.

At the beginning of the light snow solar term, the frozen depth of the soil in Northeast China has reached 10cm, with an average of 1cm for almost one day and night, and more than one meter at the end of the solar term. Therefore, as the saying goes, "the snow area is tightly sealed", and then rivers of all sizes freeze.

The agricultural proverb says, "Light snow will make the coming year rich." There are three meanings here. First, there will be light snow, and the rain will be even in the coming year, without major droughts and floods; Second, snow can freeze some germs and pests to death, reducing the occurrence of pests and diseases in the coming year; Thirdly, snow can keep warm, which is conducive to the decomposition of soil organic matter and enhance soil fertility.