Climate Change Chart of Changwon, South Korea

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.42 °C compared with the earlier reference period; this is an unweighted comparison of month-level means, not a day-weighted annual average or a measure of daytime highs. The monthly pattern was not uniform: June had the largest increase, with a difference of +1.46 °C, while December had the largest decrease, with a difference of -1.33 °C. These extrema describe the stated monthly mean changes, not every month or a continuous trend between the reference periods.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of +1.04 mm/day compared with the earlier period. This is an unweighted mean of monthly means, and the measure is a daily average rather than a monthly rainfall total. The change also varied by month: August recorded the largest increase, with a difference of +2.62 mm/day. That monthly extreme should not be taken to describe rainfall in every month or the amount accumulated over a month.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.67 hours/day, a decrease compared with the earlier reference period. This is an unweighted comparison of calendar-month means, expressed as daily hours rather than an annual total. The largest monthly decrease was in August, where the difference was -1.48 hours/day; this identifies the strongest monthly decrease, not a uniform change throughout the year or a continuous trend between periods.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of +0.07 mm/day compared with the earlier reference period. This unweighted mean of monthly means is a daily amount, not a monthly total, and the positive difference does not imply that snowfall increased in every month. The largest monthly increase occurred in March, with a difference of +0.62 mm/day, while the largest decrease was in February, with a difference of -0.04 mm/day. These monthly differences describe the reported averages and do not establish a continuous change between the reference periods.