Is it colder in winter in the north than in the south?

It's colder in the south, and it's really cold in winter in the north, but it's dry in the north, so thick clothes can effectively keep warm. There are many rivers in the south, and the water content in the air is high, which leads to the decline of people's clothes' warm-keeping ability, and the wet and cold air makes people feel even colder.

The optimum temperature for human body is basically 18~25℃. The human body's thermal metabolism and water and salt metabolism are directly affected by air humidity. In summer, the humidity is high, which inhibits the heat dissipation of the human body and makes people feel sultry and irritable; In winter, if the humidity is high, it will make people feel cold.

Moreover, the south is close to the sun because of its low latitude and abundant heat, so the average temperature in winter should be higher than that in the north. For example, Hainan, Guangdong and Kunming are just like spring all year round. Even in winter, you can still wear only two clothes.

Introduction of temperature difference between north and south in China

The dividing line between north and south in China is Qinling-Huaihe Line, which is divided according to climate, temperature difference, rainfall and crops planted. In the north of Qinling-Huaihe line, the climate is getting drier and drier, and the precipitation is very little. The main crop planted is wheat. South of the Huaihe River line in Qinling Mountains, the climate is humid and the precipitation is sufficient. The main crop planted is rice.

in winter in the south, the relative humidity is often above 7%, and it will be higher in rainy days, and the wind is generally not strong. Most of the winds in the north are around 2 or 3, and the air is relatively dry. According to the somatosensory temperature formula of the Central Meteorological Observatory, when the relative humidity reaches 7% at 5℃, the somatosensory temperature is actually 2.6℃.

In the north, if you want to reach the same somatosensory temperature under the same temperature conditions, you need to hang strong winds of magnitude 7 and 8. However, in winter in the north, strong winds of magnitude 5 and 6 are rare, and even more so.