The characteristics of rain in the twenty-four solar terms and the meaning of rain in the twenty-four solar terms

1. Rain is the second of the 24 solar terms. Every year on February1August-20 of the Gregorian calendar, when the solar calendar reaches 330 degrees, it is a rainy solar term. The rain solar term generally starts from February 18 to 20 and ends on March 4 or 5. Rain, like Grain Rain, Xiaoman, light snow and heavy snow, is a solar term reflecting precipitation. In rainy and solar terms, the direct point of the sun is gradually approaching the equator from the southern hemisphere. At this time, the sunshine hours and intensity in the northern hemisphere are increasing, and the temperature is rising rapidly. Warm and humid air from the ocean becomes active and gradually pushes northward. At the same time, cold air is not to be outdone in the weakening trend, and it frequently competes with warm air to form rainfall. Rain solar term means the beginning of rainfall, but the rainfall level is mainly light rain or Mao Mao rain. As the saying goes, "Spring rain is as expensive as oil", and suitable precipitation is very important for the growth of crops. It is the reflection of farming culture in festivals.

Snow is an important symbol of winter. Entering the rainy solar term, it is still snowing in some parts of northern China, and it is still very cold. The southwest of Jiangnan and most parts of Jiangnan are the scene of early spring, with warm sunshine, wet and cold in the morning and evening, and green fields and warm water along the river. South China is full of spring and flowers are in full bloom. Spring scenery is everywhere in southern Yunnan. The rainy season is changeable, which is one of the seasons with the most cold wave processes in the whole year, with cold and hot, warm and cold at first.