Climate Change Chart of Yongin, South Korea

Overview of climate changes

Temperature changes

The unweighted mean difference across calendar-month means was an increase of +1.29 °C in monthly mean temperature; this summarizes the months collectively and does not mean every month changed by the same amount. The largest monthly increase was in January, at +2.95 °C. These are monthly mean conditions, not daytime maximum temperatures.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.39 mm/day. This is an unweighted comparison of monthly means, not a day-weighted annual average or a monthly rainfall total. The monthly pattern was not uniform: in August, mean daily rainfall had an increase of +3.79 mm/day, while in June it had a difference of -2.08 mm/day. These figures describe daily averages within those months, rather than the amount accumulated over each month.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.33 hours/day. This unweighted mean summarizes the monthly averages and is not a day-weighted annual figure. The clearest monthly contrast among the supplied facts is between July, with an increase of +0.47 hours/day, and August, with a difference of -1.26 hours/day. Those month-specific daily averages show that the overall mean does not describe an identical change in every month.

Changes in snowfall

Mean daily snowfall, averaged across calendar months, had a difference of -0.06 mm/day. This is an unweighted mean of monthly averages, not a day-weighted annual average; the small aggregate difference should therefore be read alongside the month-specific changes. In February, mean daily snowfall had an increase of +0.24 mm/day, whereas in January it had a difference of -0.79 mm/day. The comparison concerns recorded daily snowfall averages and does not imply that snowfall was absent in months with smaller changes.