2. Slight summer is the eleventh solar term of the twenty-four solar terms in the lunar calendar, and the fifth solar term in summer. When the sun reaches 105 degrees, it is called the slight summer solar term. Although it is not the hottest season in a year, it is followed by the hottest season in a year, and there is a folk saying that "it is a small summer and a big summer, and it is steamed and cooked". Because of sweating, consumption and fatigue, people can't ignore the maintenance of their bodies.
3. The rainy season in the Jianghuai Valley is coming to an end in the summer, and the temperature rises in the midsummer, and enters the summer drought period; However, North China and Northeast China entered the rainy season, tropical cyclones were active frequently, and the number of tropical cyclones landing in China began to increase. After the light summer, the south should pay attention to drought resistance and the north should pay attention to flood prevention. Crops all over the country have entered the stage of vigorous growth, and field management needs to be strengthened. Signs of slight summer heat: plum blossom and falling.
4. Since the beginning of the light summer, 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 obvious 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.
5. 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.
6. Around the summer heat, most parts of southern China entered the season with the most thunderstorms. Thunderstorm is a severe weather phenomenon, often accompanied by strong winds, heavy rains, and sometimes hail, which is easy to cause disasters. In the eastern part of South China, after the slight summer heat, it began to enter the summer drought period because it was often controlled by the subtropical high and was often sunny and hot. The climatic characteristics of drought in the east and waterlogging in the west in most parts of southern China.