of its terrain is mountainous, its population density is low. The Jehol or Rehe ("Hot River"), which gave Chengde its former name, was so named because it did not freeze in winter. Most sections of the river's former course are now dry because of modern dams. Climate Chengde has a four-season, monsoon-influenced humid continental climate (Köppen Dwa), with widely varying conditions through the prefecture due to its size: winters are moderately long, cold and windy, but dry, and summers are hot and humid. Near the city, however, temperatures are much cooler than they are in Beijing, due to the higher elevation: the monthly 24-hour average temperature ranges from in January to in July, and the annual mean is . Spring warming is rapid, but dust storms can blow in from the Mongolian steppe; autumn cooling is similarly quick. Precipitation averages at about for the year, with more than two-thirds of it falling during the three summer months. With monthly percent possible sunshine ranging from 50% in July to 69% in October, the city receives 2,746 hours of sunshine annually. Administrative divisions Chengde comprises: Sport The first ever bandy match in China was organised in Chengde in January 2015 and was played between the Russian and Swedish top clubs Baykal-Energiya and Sandviken. Chengde city was one of the initiators when the China Bandy Federation was founded in December 2014. The city hosted the 2018 Women's Bandy World Championship. While the record number of participants in previous Women's Bandy World Championships was 7, the organisers had thought out measures with the goal to attract 12 participating countries. However, in the end 8 teams participated. Religion Chengde is the seat of the Catholic Diocese of Chengde. Transport With road and railroad links to Beijing, Chengde has developed into a distribution hub, and its economy is growing rapidly. The newly built Jingcheng Expressway connects Chengde directly to central Beijing, and more freeways are planned for the city. The city's new airport was opened on 31 May 2017. It is located northeast of the city center in Tougou Town, Chengde County. Sights The project of building Chengde Mountain Resort started in 1703 and finished in 1790. The whole mountain resort covers an area 5,640,000 square meters. It is the largest royal garden in China. The wall of the mountain resort is over 10,000 meters in length. In summers, emperors of the Qing dynasty came to