What's the difference between winter and summer winds in Xuzhou? Are there any obvious changes in precipitation in winter and summer? Why?

Xuzhou belongs to the monsoon climate zone, with northwest wind and northeast wind in winter; There are many southeast and southwest winds in summer.

The precipitation changes obviously in winter and summer, rainy in summer and dry in winter.

From the literature, the prevailing wind direction in Xuzhou seems to be the southwest wind, rather than the southeast-northwest wind direction that I often think.

The reason is the same as that in the northern region: the weather is hot in summer, and the moist and cool airflow on the ocean can take advantage of it and bring precipitation. In winter, the dry and cold air currents in Siberia and Mongolia control the mainland, and the air is as dry and cold as the weather!