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Weather extremes

How extreme does Kaesŏng's weather get?

The hottest, coldest, wettest and snowiest days Kaesŏng has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Kaesong station 1 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Kaesŏng has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
102°F Sep 6, 2016

That is about 23°F hotter than a normal September afternoon in Kaesŏng (typical high near 78°F).

The three most extreme on record

1 102°F Sep 6, 2016
2 100°F Aug 1, 2018
3 99°F Aug 2, 2018
❄️ Coldest night
-5°F Jan 6, 2010

About 21°F colder than a normal January night in Kaesŏng (typical low near 16°F).

The three most extreme on record

1 -5°F Jan 6, 2010
2 -3°F Jan 11, 2001
3 -3°F Jan 14, 2010
🌧️ Most rain in one day
12.28 in Aug 29, 2018

More rain in a single day than Kaesŏng usually gets in the whole month of August (typical August total about 10.1 in).

The three most extreme on record

1 12.28 in Aug 29, 2018
2 11.93 in Aug 15, 2012
3 10.99 in Jul 6, 2002

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-30°-10°10°30°50°70°90°110°130° all-time high 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kaesŏng's record heat sits well above even a hot day for the season — September's 102°F is about 23°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Kaesŏng's warmest days reach the mid-80s°F and its coldest nights drop to the mid-10s°F. But across the record it has gone as high as 102°F and as low as −4°F. A single day has delivered over 12 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Kaesong, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →