When is the light snow solar term?

The light snow time is on the 22nd or 23rd of October of Gregorian calendar 165438+, that is, when the sun reaches 240.

This solar term is called Xiaoxue because "snow" is the product of cold weather, and the climate of this solar term is not cold and the precipitation is not heavy, so "Xiaoxue" is compared to the climate characteristics of this solar term. "Light snow" is a metaphor, which reflects the active cold current and increased precipitation in this solar term, rather than the light snow under this solar term.

Because the surface temperature in South China is often above 0℃ in winter, it is more difficult to snow than to snow. Occasionally, although the sky is buzzing, there is no "broken jade" on the ground. In the cold northwest plateau, it usually begins to snow all the year round 10. The number of snowfall days in the northwest of the plateau can reach more than 60 days a year, and snowfall is possible in some alpine regions all year round.

There is no necessary connection between the light snow in solar terms and the light snow in the weather. The meaning of "light snow" in solar terms is different from that in daily weather forecast. Light snow solar term is a climate concept, which reflects the temperature and precipitation. The "light snow" in the weather forecast refers to the snow with less snowfall intensity. Meteorologically, the horizontal visible distance is equal to or greater than 1000m, the ground snow depth is less than 3cm, and the snowfall in 24 hours is between 0. 1-2.4mm, which is called "light snow". ..

Light snow solar terms do not necessarily snow. In fact, the solar terms with the largest snowfall in the whole year are not in light snow and heavy snow. For example, the solar term with the largest annual snowfall in the middle and lower reaches of the Yellow River and its vicinity is neither "light snow and heavy snow" nor "slight cold and severe cold", but a "rainy" solar term in spring.