Where is it cold in Chengde and Beijing in winter?

Compared with Beijing in winter, the weather in Chengde is cold. Because the latitude of Chengde is higher than that of Beijing. Chengde is located near Bashang grassland, with higher latitude than Beijing, and there are virgin forests nearby. The Siberian cold current in the north swept across North China through Zhangjiakou and Chengde in Inner Mongolia, so it was cold. Beijing is not so cold compared with Chengde because of its low latitude, so the weather in Chengde is cold compared with Beijing in winter.