What does light snow mean?

One of the twenty-four solar terms in the China lunar calendar, indicating climate change and agricultural time. Snow with monthly, daily or daily snowfall less than or equal to millimeters: hours.

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( 1)? [Xiaoxue (20 solar terms)]: One of the 24 solar terms of the China lunar calendar, indicating climate change and farming time. On165438+1October 22nd or 23rd.

(2)? [Xiaoxue]: Snow with snowfall less than or equal to 2.5 mm within 24 hours.

The Network Interpretation of Xiaoxue

Light snow (light snow in the twenty-four solar terms)

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' at the declination. On this day, the daytime in Beijing is only 9 hours and 49 minutes, and the sun is only 29 50' at noon.

During the "light snow" solar term, the bucket handle of the Big Dipper points to the northwest at night (equivalent to 10 on the clock). Every night after 20: 00, if you go to your house, you look like a star.

It can be seen that the Big Dipper sinks to the west, while the W-shaped Cassiopeia rises to the sky. Cassiopeia replaced the Big Dipper and undertook the task of finding the coordinates of Polaris, and guided the stargazers. The quadrilateral Pegasus is facing the sky, and Orion, which symbolizes the winter starry sky, is already on the eastern horizon.

Entering this solar term, the northwest wind in China began to become a frequent visitor, and the temperature dropped, gradually dropping below 0℃.

However, the earth is not too cold. Although it begins to snow, the amount of snow is not large, so it is called light snow. At this time, Yin Qi fell and Yang Qi rose, which led to the impassability of heaven and earth, the imbalance of yin and yang, the loss of vitality of everything, and the occlusion of heaven and earth into the severe winter. The first snow will appear in the area north of the Yellow River, reminding people that it is time to keep out the cold and keep warm.