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Weather extremes

How extreme does Jeonju's weather get?

The hottest, coldest, wettest and snowiest days Jeonju 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 Jeonju station 3 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 Jeonju has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Aug 2, 2006

That is about 15°F hotter than a normal August afternoon in Jeonju (typical high near 88°F).

The three most extreme on record

1 103°F Aug 2, 2006
2 101°F Aug 6, 2012
3 101°F Jul 23, 1994
❄️ Coldest night
-5°F Jan 31, 2005

About 28°F colder than a normal January night in Jeonju (typical low near 23°F).

The three most extreme on record

1 -5°F Jan 31, 2005
2 1°F Jan 5, 2003
3 2°F Jan 8, 2021
🌧️ Most rain in one day
11.26 in Aug 14, 1992

About 94% of a typical August's rain in a single day (Jeonju averages roughly 11.9 in across the month).

The three most extreme on record

1 11.26 in Aug 14, 1992
2 10.43 in Aug 3, 2005
3 10.43 in Apr 13, 2022

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 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Jeonju's record heat sits well above even a hot day for the season — August's 103°F is about 15°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, Jeonju's warmest days reach the high 80s°F and its coldest nights drop to the low 20s°F. But across the record it has gone as high as 103°F and as low as −4°F. A single day has delivered over 11 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 Jeonju, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →