Are you a junior? I'm from Jiangsu University of Science and Technology. Zhenjiang is not as cold as Heilongjiang. People who may be used to that environment will not come to Zhenjiang at all. You don't need cotton trousers coat, sweater trousers and down jacket. It's quite humid here. Although the lowest temperature is 9 degrees below zero, it is almost as cold as 20 degrees below zero in the north.