When is the rainy solar term? Brief introduction of rain solar terms.

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, like solar terms such as Grain Rain, Xiaoman, light snow and heavy snow, is a solar term reflecting precipitation and ancient farming culture. Rainy solar terms mark the beginning of rainfall. As the saying goes, "Spring rain is as expensive as oil", and suitable precipitation is very important for the growth of crops. Entering the rainy solar term, the northern part of China is still cloudy and cold, and it is still snowing in some places, and there is no breath of spring; Most places in the south are full of spring, with a scene of early spring.