Why are winters different in different parts of the motherland?

Due to the vast territory of China, the distance between north and south is far, and the solar radiation intensity and sunshine time are very different, so the temperature in winter is also different. For example, in the northern winter, affected by the cold high pressure in Mongolia and Siberia, cold air often goes south to form a cold wave, which greatly reduces the temperature. The south is affected by the warm and humid air flow from the ocean, and the weather is mild in winter.

Due to the vast territory of China, the distance between north and south is far, and the solar radiation intensity and sunshine time are very different, so the temperature in winter is also different. For example, in the northern winter, affected by the cold high pressure in Mongolia and Siberia, cold air often goes south to form a cold wave, which greatly reduces the temperature. The south is affected by the warm and humid air flow from the ocean, and the weather is mild in winter.