Please tell me about the weather in Kaifeng, thank you

I am a local in Kaifeng. Kaifeng usually starts to get a little cold in November, and there are wind and sand. It is the coldest in December, January and early February. You usually have to wear a hat when going out. . It usually starts to get warm in March. June, July and August are the hottest three months, and it starts to get cooler in September.