There has been an increasing trend in tempera- ture over the past 30 years. According to the cli- mographs, average monthly temperature of recent 30 years (1981 – 2010) are greater than the past
30 years (1971 – 2000), except for July.The annual precipitation of the Korean Peninsu- la experienced a slight increase by around 50 mm on average in the last 30 years (1981 – 2010). The
annual precipitation recorded at 13 observation stations increased by about 3.9% on average than the past, while Ulleungdo experienced an 11% increase in precipitation. In most areas, summer
precipitation has increased, while spring and au-
tumn precipitation have decreased.