Why is the weather in Jiangxi so abnormal?

It won't be too abnormal. The anomaly may be in northern Jiangxi. Summer is very hot, especially in Nanchang, which is famous for its heat. It's cold in winter. It doesn't matter whether it's cold or not. It's windy. I studied in northern Jiangxi for several years before, and I want to stay in the quilt in winter. It's really disgusting. Gannan is also hot in summer, but it is not as hot as a stove. Although it will snow in winter, the wind is not strong and it will not be too cold.