The traditional festival that often rains is this day.

Qingming, climate characteristics: the temperature is getting warmer, the weather is changeable and rainy. Qingming is also the most important festival to worship ancestors and sweep graves. According to the old custom, when sweeping graves, people should bring food, wine, fruit, paper money and other items to the cemetery, offer food to the graves of their loved ones, then burn the paper money, cultivate the soil for the graves, break some green willow branches and put them in front of the graves, then kowtow to worship, and finally go home after eating the food, wine or packing the offerings.

On this day, in every household in the Yellow River Basin, Huaihe River Basin and Yangtze River Basin, Tomb-Sweeping Day planted willows at the door, hung willows under the eaves, spread willows on women's heads, put willows on men's heads, put willows on children's heads, and hung paper money on graves. During the Qingming Festival, the spring is bright and the vegetation is lush, which is a good time for people to have a spring outing. Going for an outing is also called a spring outing. In ancient times, it was called spring exploration.

Meteorological change

Qingming is a solar term that reflects the phenological changes in nature. At this time, the sun is shining, plants are sprouting, the air is fresh, everything is alive, and nature presents a vibrant scene. As the saying goes, the Qingming snow rests, and the Grain Rain frost rests. By the Qingming Festival, the average daily temperature in most parts of China had risen above 12℃, with fresh air, bright sunshine and pleasant scenery.

The poet Du Mu's poem "It rains in succession during the Qingming Festival" refers to the frequent precipitation in southern China in spring. In April, the number of days in Jiang Nanyu was around 16, and the rainfall was above 100 mm, even more in some areas. At this time, the weather is often cloudy and sunny, and abundant water can meet the needs of crop growth. At this time, the temperature in South China has reached 15℃ and the rainfall continues to increase.