What is the solar term for sneaking into the night with the wind and moistening things silently?

Sneaking into the night with the wind, moistening things silently describes the rain solar term. The poem comes from "Spring Night Happy Rain" by Du Fu in the Tang Dynasty. Rain is the second solar term among the twenty-four solar terms. Dou Zhiren; the sun reaches 330° of the ecliptic longitude; the festival falls on February 18-20 every year in the Gregorian calendar. The meaning of the rain solar term is the beginning of rainfall. The amount of rainfall is mainly light rain or drizzle. Suitable precipitation is very important for the growth of crops. It is a reflection of the farming culture on the seasons. Entering the rainy season, the northern parts of China have not yet felt the breath of spring, while most places in the south are full of spring, a scene of early spring. The rain solar term period generally starts from February 18th to 20th in the Gregorian calendar and ends on March 4th or 5th. During the rainy season, the direct rays of the sun gradually move closer to the equator from the southern hemisphere. At this time, in the northern hemisphere, the duration and intensity of sunshine are increasing, the temperature rises rapidly, and the warm and humid air from the ocean becomes active and gradually moves northward. The advancing air meets cold air and forms rainfall. During the rainy season, the weather changes erratically, and it is one of the seasons with the most cold waves throughout the year, with periods of hot and cold, and warm and cold.