Climate-Zone.com

HomeCitiesSouth KoreaGunsanTools › Weather extremes

Weather extremes

How extreme does Gunsan's weather get?

The hottest, coldest, wettest and snowiest days Gunsan 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 Gunsan station 5 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 Gunsan has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Jul 12, 2007

That is about 19°F hotter than a normal July afternoon in Gunsan (typical high near 84°F).

The three most extreme on record

1 103°F Jul 12, 2007
2 102°F Aug 13, 2001
3 101°F Aug 23, 2007
❄️ Coldest night
2°F Jan 8, 2021

About 22°F colder than a normal January night in Gunsan (typical low near 24°F).

The three most extreme on record

1 2°F Jan 8, 2021recent
2 4°F Jan 7, 2021
3 4°F Jan 24, 2023
🌧️ Most rain in one day
12.87 in Sep 7, 1992

More rain in a single day than Gunsan usually gets in the whole month of September (typical September total about 6.2 in).

The three most extreme on record

1 12.87 in Sep 7, 1992
2 12.08 in Jul 10, 2011
3 11.30 in Aug 26, 2000

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.

-10°10°30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Gunsan's record heat sits well above even a hot day for the season — July's 103°F is about 19°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, Gunsan's warmest days reach the mid-80s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 103°F and as low as 2°F. A single day has delivered over 13 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 30 years of daily observations at Gunsan, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →