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 high altitude of at least 1000 metres: Monthly means range from −9.1 °C (15.6 °F) in January to 24.5 °C (76.1 °F) in July. Spring warming is rapid, but dust storms can blow in from the Mongolian steppe; autumn cooling is similarly quick. Precipitation averages at 512 millimetres (20.2 in) for the year, with more than two-thirds of it falling during the three summer months
