Eat lotus root in summer. In the south of the Yangtze River, there is a saying that lotus root is eaten in the summer, and as early as the Xianfeng period of the Qing Dynasty, lotus root was appointed as a royal tribute. Because it is homophonic with "I", the folk custom uses eating lotus root to wish a happy marriage, and because it comes out of the mud, it is not stained, and together with lotus flower, it is a symbol of clean and noble personality. Every summer comes, people are used to eating lotus roots.

Since the beginning of the summer heat, the plum rains in the Jianghuai basin have ended successively, and the southeast monsoon rainy season from the Pacific Ocean has begun in the vast areas north of the Huaihe River and Qinling Mountains in the east, with a significant increase in precipitation and relatively concentrated rainfall. South China, Southwest China and Qinghai-Tibet Plateau are also in the southwest monsoon rainy season from the Indian Ocean and the South China Sea. The middle and lower reaches of the Yangtze River are generally hot and rainy under the control of subtropical high.

In some years, the cold air force in the north is still strong before and after the slight summer heat, and it is evenly matched with the warm air in the south in the middle and lower reaches of the Yangtze River, resulting in frontal thunderstorms. Thunderstorms in the summer are often the weather information of "falling Huangmei", which indicates that the rain belt will remain in the middle and lower reaches of the Yangtze River for some time.