2. Great Summer: Great Summer is the twelfth solar term in the twenty-four solar terms of the lunar calendar, when the sun reaches the longitude of the Yellow River 120 degrees. At this time, before and after the mid-crouching, most parts of China are the hottest period of the year, and it is also the period with the fastest growth rate of heat-loving crops.
3, summer heat: summer heat, that is, "summer heat", means hot to leave. Summer is the14th solar term among the 24 solar terms of the lunar calendar, and the time is August 23rd of the Gregorian calendar, when the sun reaches150. The summer solar term means that it is about to enter the autumn with meteorological significance. After the summer, the temperature in the area north of the Yellow River in China gradually drops.
Extended data
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.