When is Grain Rain in 2023?
Twenty-four solar terms are specific festivals in the calendar that indicate the change of natural rhythm. Four years old, three months in spring, summer, autumn and winter, two solar terms each month, each solar term has its own unique meaning. Grain Rain is the sixth solar term among the 24 solar terms and the last solar term in spring. Pointing at the stars; The meridian of the sun is 30; Celebrate every April 19-2 1 in Gregorian calendar.
Grain Rain was taken from the meaning of "Rain gives birth to a hundred valleys", and the precipitation increased obviously at this time. Seedlings and new crops in the field need the moisture of rain most. Only when the rainfall is sufficient and timely can cereal crops thrive. Grain Rain, like rain, Xiao Man, light snow and heavy snow, is a solar term reflecting precipitation and ancient farming culture.
Meteorological characteristics of Grain Rain;
Continuous spring rain is the most important feature of solar terms in Grain Rain. 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.