What is the weather like in Lanzhou these days?

It's not very cold now. It's already heating. It is sunny almost every afternoon, but you must bring a thicker sweater coat. In addition, it is estimated that you should wear down jacket, lipstick and umbrella in1February. It's too dry, and my lips often crack, but it's been raining a lot recently. Lanzhou is very polluted, and the rain is particularly dirty!