Hi, I'm planning a trip to Harbin from 24-30 Dec 2015. Will there be snow ?

Oh, according to the previous weather data, the temperature during that period of time is -4 F to 20 F. It's so cold. There is a high possibility of snowing. You need to bring your winter clothes.
As for shoes, I don't have such pictures. You have to wear snow boots and thigh boots in order to keep warm. UGG is a nice choice.