What is the complete feature of rain?
Rain is the second solar term in the twenty-four solar terms, which means that the sun reaches 330 degrees of the yellow meridian, and the festival is held on February 18-20 of the Gregorian calendar every year. The rainy solar term means that it begins to rain, with a lot of rainfall, mainly light rain or Mao Mao rain. Proper precipitation is very important for the growth of crops, and it is the reflection of farming culture on 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. 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.
Historical origin
Four years old, three months in spring, summer, autumn and winter, two solar terms each month, each solar term has its own unique meaning. Wu Cheng's book "Twenty-four Solar Terms" in the Yuan Dynasty said: "The first month is aquatic in the sky, and spring is wood. However, people who grow trees must have water, so it rained successfully in beginning of spring. If the east wind melts, it will disperse into rain. "
In Yizhoushu, there are phenological descriptions such as "Hongyan coming" and "vegetation sprouting" after the rain. The water that nourishes the growth of all things comes from rain. As the saying goes, "Spring rain is as expensive as oil", and everything needs rain to moisten it, so people often regard spring rain as particularly precious. Many of the 24 solar terms directly reflect precipitation, which shows that China ancestors attached great importance to precipitation.
Above content reference: Baidu Encyclopedia-Rain