First, during the Xiaoman solar term, the rainstorm increased, and the water shortage was frequent.

The second is the fullness of wheat in the northern region. Agricultural proverbs in southern China give Xiaoman a new meaning: "Xiaoman is dissatisfied and breaks the ridge"; "Small full of dissatisfaction, regardless of the mango." The fullness in Xiaoman refers to the surplus of rain, and the rainfall is heavy in Xiaoman season, so the rivers are full of arguments.

Data expansion:

Xiaoman, the eighth of the 24 solar terms, is also the second solar term in summer. Xiaoman, fighting nails, the sun reaches 60 degrees of the yellow meridian, and it is celebrated on May 20-22 of the Gregorian calendar every year. The name of Xiaoman has two meanings. First, it is related to climate and precipitation.

During the Xiaoman solar term, the rainstorm in the south began to increase and the precipitation was frequent; As the folk saying goes, "Small and full, rivers are getting full". The "fullness" in the small fullness refers to the surplus of rain. Second, it is related to agricultural wheat. There is little or no rain during the Xiaoman solar term in the northern region. This "fullness" does not mean precipitation, but refers to the fullness of wheat.

During the Xiaoman solar term, there will be more and more rainfall in the southern part of China; The warm and humid air flow from the ocean is active and meets the cold air coming from the north to the south. At this time, there will often be continuous and large-scale heavy precipitation in South China, causing heavy rain or torrential rain.

Jiangnan area is often full of rivers and lakes. If there is less rain at this stage, it may be that the subtropical high in the Pacific Ocean is weak and located to the south, which means that it is Huangmei season. In the north, there is little or no rain during the Xiaoman solar term, during which the temperature rises rapidly and the temperature difference with the south further narrows.

The ingenious closure of the "Twenty-four solar terms" is the product of China's ancient farming civilization. It is not only a seasonal system that guides farming production, but also a folk system that contains rich folk customs.

According to the characteristics of farming society, the folk customs of solar terms in Xiaoman mainly include "Xiaoman offering sacrifices to the car god", "Xiaoman moving three cars (water wheel, oil car and silk car)", "Xiaoman grabbing water", "Xiaoman praying for silkworms" and "Xiaoman eating wild vegetables".