When does it snow in the solar terms?

In our impression, it usually snows in February or October of 65438. 65438+ 10 The probability of snow in June is very small, but it has already happened in many places. When should it snow? Come and have a look with me.

In which solar term does it usually snow?

In the north, it began to snow during the solar term in beginning of winter.

During the first frost solar term, Heilongjiang began to enter the cold weather below zero, while in early winter, the weather below zero has appeared in most parts of the north. When the temperature reaches 0 degrees, the rainfall may drop in the form of snowfall, so it will begin to snow in the north in early winter.

When does it snow?

165438+1It snows around October. Generally speaking, the light snow solar term begins to snow, and the light snow solar term is at 1 1, so it snows at 1 1.

During the light snow 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. 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.

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 going south, and there will be a 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 meaning of cold in light snow stage is lower than that in winter stage. Speaking of light snow solar terms, it means that there will be snowfall in North China. The cold air gradually brought the temperature below 0℃ in most parts of northern China.

The average first snow period in the middle and lower reaches of the Yellow River is basically the same as the light snow solar terms. 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 air flow is active, it may also snow heavily; Winter begins in the northern part of the southern region. "Lotus has no shelter from the rain, and chrysanthemums still have branches in Ao Shuang" has always been the scene of early winter.

Many places in the country ushered in the first snow after autumn.

10 On June 6, the National Day holiday, Zhangjiakou, Hebei Province ushered in the first snow in autumn. The Tianlu in Zhangbei Grassland was covered in silver and picturesque.

6543810.6, Tacheng and Yumin counties in Xinjiang ushered in the first snow in autumn. The golden leaves and the white snow flowers set each other off, forming a quiet and beautiful picture.

65438+ 10 9, Zhangye, Gansu, affected by cold air, Shandan Racecourse in the middle of Hexi Corridor ushered in snowfall, and the grassland in late autumn was wrapped in silver.

65438+1October 10, affected by strong cold air, many places in Gansu ushered in the first snowfall since 202 1 autumn. The streets of Pingliang City are wrapped in silver.

Recently, affected by strong cold air, the first snowfall since the fall of 202 1 was ushered in many places across the country.

Is snow exothermic or endothermic?

Absorb heat. When snow melts, water changes from solid to liquid, which absorbs heat and lowers the temperature. In addition, when snow melts, it evaporates into water, and when water changes from liquid to gas, it also absorbs heat and cools down.

Solid water falls from the mixed clouds to the ground in the form of snowflakes. Precipitation consisting of a large number of white opaque ice crystals (snow crystals) and their polymers (snow masses). Snow is a natural phenomenon that water falls after condensation in the air, or refers to falling snow; Snow is the solid form of water.

Ice cloud is made up of tiny ice crystals. When these small ice crystals collide with each other, the surface of the ice crystals will heat up and melt, and they will stick together and freeze again. Repeat this for many times, and ice crystals will increase. In addition, there is water vapor in the cloud, so ice crystals can continue to grow through condensation.

However, where the ice cloud is generally high but not thick, and there is not much water vapor, the condensation growth is slow, and there are not many opportunities to collide with each other, so it cannot grow to a great extent to form precipitation.