Grain Rain means "rain produces hundreds of grains", as the proverb goes: There is more rain in March and more jaundice in April.

Grain Rain is the sixth solar term of the twenty-four solar terms and the last solar term in spring. Douzhichen; the sun's ecliptic longitude is 30°; it crosses from April 19th to 21st in the Gregorian calendar every year.

Grain Rain is taken from the meaning of "Rain produces hundreds of grains". At this time, precipitation increases significantly. The seedlings in the fields are first transplanted and new crops are planted. They need the moisture of rain the most. If the rainfall is sufficient and timely, the cereal crops can Thrive.

Grain Rain, like rain, Xiaoman, Xiaoxue, Heavy Snow and other solar terms, are all solar terms that reflect the phenomenon of precipitation and are a reflection of the ancient farming culture.

During the Grain Rain season, it often starts to rain significantly in southern China. Especially in South China, once the cold air meets the warm and humid air, it often forms a long period of rainfall.

The Qinling Mountains-Huaihe River is the transition area between the spring rain in the south and the spring drought area in the north. From the vicinity of the Qinling Mountains-Huaihe River to the north, the spring rain decreases sharply. In the northern region, Grain Rain is a symbol of "final frost".

Continuous spring rain is the most important characteristic of Guyu. The name of the solar term "Grain Rain" comes from the ancient saying that "rain produces hundreds of grains", which reflects the agricultural and climatic significance of the solar term. During the Grain Rain solar term, folk customs include picking Grain Rain tea, walking in the Grain Rain, worshiping the sea, eating spring food, and admiring flowers.

The twenty-four solar terms are specific seasons in the calendar that represent changes in natural rhythms. One year old and four o'clock, three months each in spring, summer, autumn and winter, each month has two solar terms, each solar term has its own unique meaning. Grain Rain is the last solar term in spring. Grain Rain is derived from the meaning of "rain produces hundreds of grains".