What is the meaning of the Lesser Heat solar term? What are the characteristics of weather changes?

What is the meaning of the Lesser Heat solar term? What are the characteristics of weather changes?
What is the meaning of the Lesser Heat solar term? What are the characteristics of weather changes? Shui Mo Net has prepared detailed content about each day of the sixth lunar month in 2022, including what the specific day will be like. Let’s learn about it in detail at Shui Mo Net.

What is the meaning of the Lesser Heat solar term?

Lesser Heat is the eleventh solar term of the twenty-four solar terms in the lunar calendar and the fifth solar term in summer, marking the official beginning of the midsummer season. The Lesser Heat occurs when the sun reaches 105° of the ecliptic longitude on July 7 or 8 every year. "Shu" means hot, and "Xiaoshu" means a slight heat, which means the weather is starting to get hot but has not reached its hottest point yet. This climate basically applies to most parts of China.
The average temperature in southern China during the Lesser Heat period is around 26℃, which is already midsummer. All regions have also entered the season with the most thunderstorms, which are often accompanied by strong winds, heavy rains, and sometimes hail. Most areas in the south are experiencing drought in the east and floods in the west. Anti-drought and flood prevention measures must be taken as soon as possible to minimize the damage. In most farming areas of China, after the rush to harvest and plant in May of the lunar calendar, around the beginning of the Lesser Heat, except for the harvesting of winter and spring wheat and other crops in the Northeast and Northwest regions, crops across China have entered a stage of vigorous growth. Farming work mainly involves various field management tasks, and top dressing should be applied according to the growth trend and preparations for pest control should be made.

What are the characteristics of weather changes?

Thunderstorms in the south, high temperatures and drought in southern China
Around the beginning of the Lesser Heat, most areas in southern China enter the season with the most thunderstorms. Thunderstorm is a severe weather phenomenon, often accompanied by strong winds, heavy rains, and sometimes hail, which can easily cause disasters. In eastern South China, after the Lesser Heat, it is often controlled by the subtropical high pressure, with continuous sunny and high temperature weather, and begins to enter the summer drought period. Most parts of southern China have this climate characteristic of drought in the east and floods in the west.
Precipitation increases along the Huaihe River and Qinling Mountains
With the beginning of Lesser Heat, the plum rain season in the Yangtze and Huaihe River basins ends one after another, and the vast areas in the east north of the Huaihe River and Qinling Mountains begin the southeast monsoon rainy season from the Pacific Ocean. Precipitation increases significantly and the rainfall is relatively concentrated. South China, Southwest China, and the Qinghai-Tibet Plateau are also in the southwest monsoon rainy season from the Indian Ocean and the South my country Sea.
Frequent thunderstorms in the middle and lower reaches of the Yangtze River
The middle and lower reaches of the Yangtze River generally experience high temperatures and little rainfall under the control of subtropical high pressure. In some years, the cold air in the north is still strong around the beginning of the Lesser Heat, and 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 during the Lesser Heat season are often a sign of "reverse plum rain" weather, which indicates that the rain belt will remain in the middle and lower reaches of the Yangtze River for some time.

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