What's the weather like in Shangrao, Jiangxi in winter? Urgent! ! !

I'm from Shangrao. It hardly snows in winter, but the rainfall is particularly abundant. It's very cold. Oh, sunshine is precious. The temperature seldom falls below zero. If it is sunny, the highest temperature in a day is about 15. If it rains, the temperature is 6- 10. If you want to come, bring more thermal underwear, sweaters and so on. The windbreaker is not effective in resisting the cold in Jiangnan. On the other hand, the climate has changed in recent years. I remember wearing short sleeves on the first day of winter the year before last, and it snowed the next day. Be mentally prepared.