Weather on late february 2013

Hi, Beijing will still be a little cold at that time. The average temp will be around 3C, so you need take along the a common sweater plus a cotton-padded jacket. In the suburb areas, you also need wear gloves and scarf.
Xian will be warmer than Bijing during that period, with the temp range of 3-16C. But a sweater and a thick jacket are till suggested.
Shanghai will still be in winter time and the average temp is about 4C. Thus warm winter clothes are recommended, including down coats, thick trousers, and warm shoes.