The Twelfth International Meeting on Statistical Climatology was held in Jeju Island, South Korea from 24-28 June, 2013. The meeting was hosted by the National Institute of Meteorological Research (NIMR) and IMSC Steering Committee. The 12th IMSC was sponsored by the Korea Meteorological Administration (KMA), the Korean Meteorological Society (KOMES), the Pacific Climate Impacts Consortium (PCIC), and the Institute for Mathematics Applied to Geosciences (IMAGe)/National Center for Atmospheric Research (NCAR). The Program Committee included Bryson Bates, Richard E. Chandler, Gabi Hegerl, Dongsoo Kim, Kwang-Yul Kim, Won-Tae Kwon, Bo Li, Douglas Nychka, Hee-Seok Oh, Hans von Storch, Xuebin Zhang, and Francis Zwiers. Chunho Cho and Seung-Ki Min co-chaired the committee for the meeting. About two hundred scientists from thirty countries participated in the meeting. Douglas Nychka won the IMSC Achievement Award. The abstracts book is available. Most of presentations are available on-line from the abstracts book.