Graphical Abstract

Ha, K.-J., J.-H. Yeo, Y.-W. Seo, E.-S. Chung, J.-Y. Moon, X. Feng, Y.-W. Lee, and C.-H. Ho, 2020: What caused the extraordinarily hot 2018 summer in Korea? J. Meteor. Soc. Japan, 98, 153-167.
Special Edition on Extreme Rainfall Events in 2017 and 2018 Abstract with highlights

Plain Language Summary: This study intends to diagnose an extraordinary heatwave (HW) in 2018 that the Korean Peninsula (KP) has experienced extreme heat throughout July and August with the highest temperature and longest consecutive hot days on record since 1907. The causes of these abnormal temperature patterns were examined with the difference from other episodic events as in 1994.