The main reason for the large temperature difference in winter is the large latitude difference and the high latitude in the north. Compared with the south, the solar altitude angle in winter is small, the daytime is short, and there are many sunny days, and the received solar radiation energy is not much different. The northern region is close to the source of winter wind, which is greatly influenced by winter wind and has low temperature; Due to the blocking of Qinling Mountains and other mountains, the southern region is less affected by the winter wind and warmer.
The precipitation varies greatly. The climate in the south is humid, with more precipitation and less precipitation in the north.
Reason: The summer monsoon landed from the southeast coast, and the precipitation brought by it affected our country from south to north. So there is a lot of precipitation in the south. The rainy season starts in April and ends at 10. The rainy season in the north is in July and August, and the rainy season is very short. Of course, relatively humid air is good for the skin, otherwise, why do you say that one side of the soil and water can support one side ~ ~.