What season is the north wind howling?

The howling of the north wind refers to winter.

The whirring of the north wind generally refers to the northwest wind. In a narrow sense, it refers to the wind blowing from the northwest. In a broad sense, it can be considered as the west wind or the north wind. It means tenacity, the coldest and most biting in four winds, and it means cold. Strong north wind, especially in winter in Mexico, Central America and Spain.

Because there is cold air. The distant Arctic Ocean and cold Siberia are the cradles of cold air. The cold air originally came from the Arctic Ocean, and was later strengthened through Siberia. These areas have high latitude, long winter nights, short days and few sunshine hours. In the polar regions, there will even be extreme nights, and the sun never shows its face.

Therefore, the earth's heat from the sun is very weak; However, at night, the ground radiates a lot of heat into space. With the continuous cooling of the ground, the temperature of the atmosphere near the ground is getting lower and lower, and the accumulation of cold air will increase.

Guided by the northwest airflow, this cold air mass with extremely low temperature will push from north to south, affecting Mongolia, North China, East China or most parts of China.

Winter:

Winter is one of the four seasons, which traditionally begins with "beginning of winter" among the 24 solar terms. In winter, life is closed and everything enters a state of recuperation. In winter, that is, "in the end, everything is harvested." After beginning of winter, everything began to shut down.

Li Si's division of four seasons reflects many characteristics such as climate and phenology. The four seasons are often divided according to the temperature change, and the method of "weather average temperature" proposed by modern scholar Zhang Baokun is adopted. In the four seasons divided by the weather average temperature method, the average daily temperature is equal to or lower than 10 degrees Celsius for five consecutive days, which is regarded as entering winter.