The moral of Grain Rain (what is the moral of Grain Rain)

The moral of Grain Rain is that the cold wave weather is basically over and the temperature rises rapidly. Grain Rain is taken from the meaning of "Rain gives birth to hundreds of valleys". By the time we arrived in Grain Rain, the precipitation had obviously increased. Seedlings and new crops in the field need rain most. Only when the rainfall is sufficient and timely can cereal crops thrive. Like the solar terms of rain, Xiao Man, light snow and heavy snow, Grain Rain is a solar term reflecting precipitation.

Grain Rain is the last solar term in spring, and Grain Rain is taken from the meaning of "Rain gives birth to hundreds of valleys". In the traditional farming culture, the solar terms in Grain Rain link "valley" with "rain", indicating the precipitation situation, and "rain gives birth to hundreds of valleys". The most important feature of Grain Rain is the continuous spring rain, which embodies the significance of "Grain Rain" in agricultural climate and is also the reflection of ancient farming culture on festivals.

The main feature of the weather in Grain Rain is rainy. After the solar term in Grain Rain, the rainfall increases and the humidity in the air gradually increases, which is beneficial to the growth of crops. After entering the Grain Rain solar term, the precipitation in the middle and lower reaches of the Yangtze River and the south of the Yangtze River increased obviously, especially in South China. Once cold air meets warm and humid air, it will often form rainy weather for a long time.

The Huaihe River Basin in Qinling Mountains is basically the dividing line between the spring rain in the south of the Yangtze River and the spring drought in the north. From the Qinling-Huaihe River to the north, the spring rain decreased sharply. In the north, Grain Rain is a symbol of the "final frost". There are few cases of large-scale invasion of cold air into the south, but the cold air activities affecting the north have not stopped, and early thunder will appear in many places.