Climate Change Chart of Gwangju, South Korea

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.73 °C compared with the earlier reference period; this is an unweighted summary of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in March, with a difference of +1.52 °C. By contrast, December had the largest monthly decrease, a difference of -0.33 °C; these monthly extremes do not mean that every month followed the same pattern.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.58 hours/day compared with the earlier period. This is an unweighted summary of monthly means, not a day-weighted annual average. The largest monthly decrease was in August, with a difference of -1.54 hours/day. In July, the largest monthly increase was a difference of +0.05 hours/day; the monthly extremes show why the overall mean should not be taken to describe every month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.77 mm/day. This unweighted summary describes daily mean amounts across calendar-month means, not monthly rainfall totals or a day-weighted annual average. The largest monthly increase was in August, with a difference of +2.52 mm/day, while June recorded the largest monthly decrease, a difference of -0.52 mm/day. These contrasts identify the strongest monthly shifts in the supplied data, rather than implying a uniform change across months.

Changes in snowfall

Mean daily snowfall, averaged across calendar months, had a difference of -0.03 mm/day. This unweighted summary of monthly means does not establish that snowfall was absent, or that every month changed in the same way. The largest monthly decrease was in February, with a difference of -0.38 mm/day, while March had the largest monthly increase, a difference of +0.27 mm/day. These are changes in daily mean snowfall, not monthly snowfall totals.