How is the temperature in Hefei from early October to the end of December? I'm going on a business trip there for three months. I want to know the weather and bring some clothes.

The weather in Hefei is somewhat changeable. In October, the temperature is probably around ten to 20 degrees, so just wear long sleeves. In November, the temperature will probably range from a few degrees to more than ten degrees, so wear a sweater or jacket. It can be very cold in December, usually at a few degrees or below zero. In short, the weather in Hefei can be very nervous sometimes, so you'd better bring all kinds of clothes.