What are the weather characteristics of the long summer solar terms?

After the long summer officially entered the rainy season, rainfall and rainy days increased significantly.

Summer is the best season for many crops to grow vigorously. Adequate light, suitable temperature and abundant rain provide necessary conditions for plants. In summer, affected by the warm and humid air flow from the ocean, the southern region is generally hot, humid and rainy. Qinling-Huaihe river basin is a transitional area between rainy south and rainy north. From the vicinity of Huaihe River in Qinling Mountains to the north, the rainfall decreased sharply.

Because China has a vast territory and a large span from north to south, natural rhythms vary from place to place. Before and after the "long summer", only the area south of Fuzhou-Nanling line in China may enter summer, and most of the rest areas are still in spring, and some areas in Northeast China and Northwest China even just entered spring at this time.

After entering the long summer solar term, the rainfall in the middle and lower reaches of the Yangtze River and South China increased rapidly in mid-May, and at this time, South China also entered the peak period of the first flood season. The rainstorm at this time often has the characteristics of continuity in time, extensiveness in region and fierceness in intensity. In the Pearl River system of Guangdong and Guangxi and the Minjiang River system of Fujian, the annual maximum water level often appears in this period, and there are folk sayings that it is long in summer, small in man, full in river and full in river.

In the long summer, the average temperature in most parts of the country is around 18-20℃. At this time, although the temperature in North China and Northwest China has risen rapidly, there is still not much precipitation. In addition, it is windy in spring, with strong evaporation and very dry weather.

After the long summer break.

There are three waiting periods in the long summer, one is the sound of cockroaches, the other is the appearance of earthworms, and the third is the birth of king melons. It is said that in this solar term, the first thing you hear is the chirping of salamanders in the field, and then you can see earthworms digging in the soil, and then the vines of the king melon begin to climb and grow rapidly.

At this time, frogs began to clamor for the coming of summer, earthworms were busy helping farmers to loosen the soil, and wild vegetables on rural ridges were also scrambling to be dug up.

Refer to the above? Baidu Encyclopedia-Long Summer