Three bowls of rain, rivers and streams full of solar terms.

"Three bowls of rain, rivers and streams are full" is the solar term of "rain".

Rain solar term means that it begins to rain, and the rainfall level is mainly light rain or Mao Mao rain. As the saying goes, "Spring rain is as expensive as oil", and suitable precipitation is very important for the growth of crops, which is a reflection of farming culture for festivals.

The rain solar term generally starts from February 18 to 20 and ends on March 4 or 5. In rainy and solar terms, the direct point of the sun is gradually approaching the equator from the southern hemisphere. At this time, the sunshine hours and intensity in the northern hemisphere are increasing, and the temperature is rising rapidly. Warm and humid air from the ocean becomes active and gradually pushes northward to meet with cold air, forming rainfall.