What's the saying about sunny days in Tomb-Sweeping Day?

Sunny weather in Tomb-Sweeping Day means that farmers want sunny weather in Tomb-Sweeping Day that day.

During the period of Tomb-Sweeping Day, there will be rainy weather in most areas over the years. This is because during the period of Tomb-Sweeping Day, most parts of China are still in the alternating period of winter and spring, and the activities of cold and warm air are more frequent. Therefore, cold and warm air alternates very frequently, which will bring rain and snow. So it's usually rainy and rainy in Tomb-Sweeping Day, and it's hard to see sunny days.

If it's sunny in Tomb-Sweeping Day, it's fine. Because on the one hand, "Tomb-Sweeping Day planted melons and beans before and after", farmers are busy sowing in spring at this time, and it is convenient to do farm work when the weather is good. On the other hand, in Tomb-Sweeping Day, we should go out to visit our dead relatives. It is convenient to travel on sunny days, sweep graves and offer sacrifices. Therefore, "Qingming" expresses farmers' expectation for sunny days in Tomb-Sweeping Day.

The weather characteristics of Tomb-Sweeping Day.

In Tomb-Sweeping Day, the atmospheric circulation in East Asia turns from winter to spring. The ridge of westerly belt moves frequently, and the low-level high and low pressure appear alternately. There is a wide range of cold and warm changes in Jianghuai area, and unstable precipitation such as thunderstorms is gradually increasing. "It rains in succession during the Qingming Festival" refers to the climate characteristics of the south of the Yangtze River. At this time, it is often cloudy and sunny, and sufficient water can generally meet the needs of crop growth. What is disturbing and can not be ignored is the harm of humidity and insufficient light caused by too much rain.

However, in the vast area north of Huanghuai Plain, there is still little precipitation during Tomb-Sweeping Day. Water for planting crops and sowing in spring is often in short supply. At this time, rain is very precious. In these areas, it is necessary to save water while doing well in spring irrigation to prevent the threat of spring drought.