What's winter like in the south?

The winter temperature in southern China is mostly above 0℃, and the lowest temperature is only a few degrees below zero. But I still feel very cold, biting cold, because the south is wet, so the winter in the south is cold and wet. People often think that southerners go to the north, but they don't think that the north is too cold.

The relative humidity in the south aggravates the chill, which is called wet cold. Anyone who has studied physics knows that because the thermal conductivity of water is relatively large, humid air is more conducive to heat conduction, so people will feel that wet cold is much colder than dry cold.

Extended data:

In the concept of physical geography, the south refers to the south of the monsoon region in eastern China, mainly referring to the south of Qinling-Huaihe line, the east of the East China Sea and the south of the South China Sea. The length of the mainland coastline accounts for about two-thirds of the country.

Including most of Jiangsu, most of Anhui, Zhejiang, Shanghai, Hubei, Hunan, Jiangxi, Fujian, most of Yunnan, Guizhou, eastern Sichuan, Chongqing, southwestern Shaanxi, Guangxi, Guangdong, Hong Kong, Macau, Hainan, Taiwan Province Province, the southernmost tip of Gansu and the southernmost tip of Henan, accounting for about 25% and 55% of the national population.

It is generally believed in academic circles that the Qinling-Huaihe line is the northern boundary of "South". 1908, Zhang, the first president of the former geographical society of China, first proposed "Huaishui in Beiling" as the "north-south dividing line" in the book "Newly Written Geographical Documents".