What is Long Summer called?

Long summer is also called Xia Meng, early summer, early summer, Huaixia and Xia Wei. Long summer is the seventh solar term in the twenty-four solar terms of the lunar calendar, and it is also the first solar term in summer. When the sun reaches 45 degrees of the Yellow Meridian, it is a long summer, and the date is May 5 or May 6 of the Gregorian calendar every year. The long summer heralds the change of seasons and the official start of summer. After the long summer, the temperature in southern China will rise rapidly, and the rainfall and days of rainfall will increase significantly.

Origin of solar terms: The long summer solar terms were established at the end of the Warring States Period (239 BC), indicating the replacement of the four seasons and the beginning of summer in the four seasons.

In fact, according to the standard of climatology, the daily average temperature rises to above 22℃ steadily, starting from summer. Before and after the "Long Summer", only the area south of Fuzhou-Nanling Line in China is really "the trees are dark in midsummer, and the balcony reflects the pond", while some areas in the northeast and northwest have just entered the spring, and the average temperature in most parts of the country is around 18 ~ 20℃, which is ". In May, Sophora japonica blooms in many places. In the long summer, everything is thriving.