Is it cold in Yinchuan in October? According to the weather forecast, it is about 9-2 1 degree. What should I wear?

Cold, wearing a T-shirt, with a coat and suit on top and jeans or something below. You can't wear sandals as shoes. The temperature difference between morning and evening is large. It's nice to watch the sun at noon, but it's still windy and the breeze is quite cold. 2 1 degree means the hottest time at noon, and going to work at 7: 30 in the morning is1degree.