What is the saying that it rains in Tomb-Sweeping Day?

The reason for the Qingming rain is that winter goes to spring, and the cold air from Siberia, which has occupied the south of the Yangtze River for a long time, begins to weaken, and the warm and humid air flow on the ocean begins to move northward actively. Cold and warm air often meet, thus forming rainy weather.

The vast area north of Huanghuai Plain, because it is located inland, has less precipitation during the Qingming period. Water is often in short supply for crops and spring sowing. At this time, rain is very precious. These areas should be well irrigated in spring to prevent the threat of spring drought while storing water and conserving soil moisture.

Extended data:

Tomb-Sweeping Day is not only a solemn festival to pay homage to ancestors, but also a happy festival for people to get close to nature, travel and enjoy the fun of spring. Douzhi B (or solar calendar reaches 15) is Tomb-Sweeping Day gas, and the node time is around April 5 of Gregorian calendar. At this time, the vitality is booming, the yin is declining, everything is "going to the old and welcoming the new", and the earth presents a scene full of spring, which is a good time to go for a walk in the spring and sweep the graves.

Tomb-Sweeping Day's integration of natural solar terms and humanistic customs is a combination of humanistic and natural conditions, which fully embodies the Chinese ancestors' pursuit of harmony between heaven, earth and people, pays attention to conforming to the right time, place and people, and follows the laws of nature.