The cold spell claimed lives.
Two tourists died on Sunday after being trapped for at least 18 hours on Lingshan Mountain on the border of Beijing and Hebei province. They were reported missing on Saturday afternoon and found Sunday morning. One was dead at the scene and the other died shortly after being found.
The temperature on the mountain was -25 C on Saturday night and there were strong winds, the police said.
In Shanghai, the municipal meteorological bureau published a 24-hour warning on Sunday afternoon.
In the coastal province of Zhejiang, the meteorological bureau forecast that most of its cities will see a substantial drop in temperature on Monday, possibly hitting -6 C.
"There are so many customers ordering our down jackets, forcing us to stop receiving online orders since Saturday," said Hu Haixia, owner of a down jacket tailoring store in Hengdian, Zhejiang.
Increasingly lower temperatures in the past month have led to rising pork prices, according to Xinhua News Agency's price system on national farm produce.