1, Grain Rain, is the sixth solar term among the 24 solar terms and the last solar term in spring. Combat refers to Chen; The meridian of the sun is 30; Celebrate every April 19-2 1 in Gregorian calendar.

2. Grain Rain is taken from the meaning of "Rain gives birth to hundreds of valleys". At this time, the precipitation increased obviously. The seedlings and new crops in the field need the rain most. With sufficient and timely rainfall, cereal crops can thrive.

3. Like the solar terms of rain, Xiao Man, light snow and heavy snow, Grain Rain is a solar term that reflects the precipitation phenomenon and ancient farming culture.

4. In Grain Rain season, obvious rain often begins to appear in southern China, especially in southern China. Once cold air meets warm and humid air, it will often form rainy weather for a long time.

5. Qinhuai River is a transitional area between the spring rain area in the south and the spring drought area in the north. From the Qinling-Huaihe River to the north, the spring rain decreased sharply. In the northern region, Grain Rain is a symbol of the "final frost".

6. The continuous spring rain is the most important feature of Grain Rain. The name "Grain Rain" comes from the old saying "Rain gives birth to hundreds of valleys", which reflects the agricultural climate significance of solar terms.

7. In Grain Rain, there are folk customs such as picking Grain Rain tea, going to Grain Rain, offering sacrifices to the sea, eating spring and enjoying flowers.

8. 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.

9. 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".

10, the biggest feature of Grain Rain is the continuous spring rain, which reflects the agricultural climate significance of "Grain Rain" and the reflection of ancient farming culture on festivals.

1 1. After the solar term in Grain Rain, the temperature rises, the rainfall increases, and the humidity in the air further increases, which is extremely suitable for the growth of cereal crops.

12. 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.

13. 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 in China increased obviously, especially in South China. Once cold air meets warm and humid air, it often becomes rainy for a long time.

14, 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.

15. In the north, Grain Rain is the symbol of "the last 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.