What's the weather like in winter in Huai 'an, Jiangsu?

Winter is very difficult, the coldest weather is around 0 degrees, and the special cold air weather is around-10 degrees, usually for a few days every year. If you live here, it depends on how old you are. If you are young, it is estimated that you can wear a down jacket and a sweater. If you are old, you should put on more clothes. Also, the weather in Huai 'an changes quickly. Cold is cold, warm is warm. In addition, the weather in Huai 'an is very cold at night, because there is no heating here like in the north, so there is little difference between the room temperature and the outside at night, so we should prepare the bedding.