What happened to the rainy season?

The moral of the rain solar term is that it marks the beginning of rainfall, and the rainfall gradually increases.

Entering the rain solar term, the northern cold is not exhausted, and the temperature changes greatly. Most places in the south are full of spring, with a scene of early spring. Rain and solar terms, the cold and snowy days have passed in most parts of China, and the temperature is warming up, which is conducive to the greening or growth of overwintering crops. Therefore, we should pay close attention to the field management of overwintering crops and make good preparations for spring ploughing and sowing such as seed selection, spring ploughing and fertilization.

Rain is the second of the twenty-four solar terms, and the time is one of February 18-20 of the solar calendar every year, and the sun reaches 330 degrees of the yellow meridian. In ancient times, rainwater was divided into three stages: one stage was that Rex sacrificed fish; Second, wait for Hongyan to come; Third, vegetation is sprouting.

Meteorological changes of rain solar terms

From the meteorological point of view, the highest temperature in most parts of China can generally rise above 0℃ after rain. Although the rainy season has entered spring, there is no smell of spring in most parts of northern China, and the average temperature in many parts of southern China is above 10℃.

At this time, rape, winter wheat, etc. Generally, it will turn green and grow, which requires higher water content. As the saying goes, spring rain is as expensive as oil, and suitable precipitation is very important for the growth of crops. At this time, the precipitation in North China, Northwest China and Huanghuai areas is generally less. If there is little rain in early spring, timely irrigation after rain is beneficial to crop growth. Because China is different, some areas are in early spring and some areas are in late spring.