A close-up of snow-covered leaves in Lanzhou city, Northwest China's Gansu province, Oct 9, 2017. [Photo/IC]

The cold front rolled across the vast northern, northeastern and northwestern regions, bringing rainfall and temperature drops of 6 to 10 C. The center issued a warning about plunging temperatures on Monday, according to Zhang Fanghua, the chief forecaster.

In Zhangjiakou, Hebei province, residents saw their first snow of the season on Monday.

In other regions affected by the cold front, areas in Qinghai and Gansu provinces and the Ningxia Hui and Inner Mongolia autonomous regions had snow on Monday. Cold weather there will last two more days, the center said.