Rainwater interpretation

The definition of rain is the second of the 24 solar terms.

Fight with your fingers; The sun reaches longitude 330; February 18-20 of the Gregorian calendar every year. Rain solar term means that it begins to rain, and 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, which is a reflection of farming culture for festivals. Entering the rain solar term, there is no breath of spring in the northern part of China, but most places in the south are full of spring and a scene of early spring.

The rain solar term generally starts from February 18 to 20 and ends on March 4 or 5. 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 to meet with cold air, forming rainfall. 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.

In ancient times, rainwater was divided into three stages: "One stage was that Rex sacrificed fish; Second, wait for Hongyan to come; Third-class grass sprouted. " Rain in the "July 9" period, the river broke the ice and the geese returned to the north. Folk customs related to rain mainly include "mending the sky and wearing it", "protecting the sky" and "bumping into worship and sending it away".