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 the weather in the north is dry, 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' ability to keep warm, and the wet and cold air makes people feel colder.

The optimum temperature of human body is basically 18~25℃. Air humidity directly affects human body's thermal metabolism and water and salt metabolism. The high humidity in summer inhibits the heat dissipation of the human body, making people feel stuffy and irritable; If the humidity is high in winter, it will make people feel cold.

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

Brief introduction of temperature difference between north and south in China.

The dividing line between north and south of China is Qinling-Huaihe Line, which is divided according to climate, temperature difference, rainfall and crops planted. North of the Qinling-Huaihe line, the climate is getting drier and drier, with little precipitation. 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.

The relative humidity in winter in the south is often above 70%, the rainy weather will be higher, 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 Central Meteorological Observatory, when the relative humidity reaches 70% 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 7 or 8 strong winds. In winter in the north, there are few strong winds of grades 5 and 6, and even fewer strong winds of grades 7 and 8.