North Korea experiences a combination of continental climate and an oceanic climate, but most of the country experiences a humid continental climate within the Köppen climate classification scheme. Winters bring clear weather interspersed with snow storms as a result of northern and northwestern winds that blow from Siberia. Summer tends to be by far the hottest, most humid, and rainiest time of year because of the southern and southeastern monsoon winds that carry moist air from the Pacific Ocean. Approximately 60 percent of all precipitation occurs from June to September. Spring and autumn are transitional seasons between summer and winter. The daily average high and low temperatures for Pyongyang are  in January and  in August.