Taebaek Mountains
Gangwon-do's Köppen climate classification's climate class is sometimes humid subtropical, because in some of its areas, especially in most of Yeongdong, it's Cfa. Otherwise, its climate class is Hot-summer humid continental climate, because it's Dwb in some mountain areas, Dfa in eastern areas, Dfb in eastern mountain areas, and Dwa otherwise. The Taebaek Mountains causes different climates in Yeongdong and Yeongseo.