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Weather extremes

How extreme does Chełm's weather get?

The hottest, coldest, wettest and snowiest days Chełm 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 Zamosc station 52 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 Chełm has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
98°F Aug 6, 2012

That is about 21°F hotter than a normal August afternoon in Chełm (typical high near 77°F).

The three most extreme on record

1 98°F Aug 6, 2012
2 98°F Aug 7, 2012
3 95°F Aug 5, 1993
❄️ Coldest night
-25°F Jan 24, 2006

About 47°F colder than a normal January night in Chełm (typical low near 22°F).

The three most extreme on record

1 -25°F Jan 24, 2006
2 -23°F Jan 23, 2006
3 -23°F Jan 26, 2010
🌧️ Most rain in one day
5.51 in Aug 21, 2024

More rain in a single day than Chełm usually gets in the whole month of August (typical August total about 2.5 in).

The three most extreme on record

1 5.51 in Aug 21, 2024recent
2 4.46 in May 17, 2014
3 2.37 in Apr 19, 1999

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.

-50°-30°-10°10°30°50°70°90°110° all-time high 98°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Chełm's record heat sits well above even a hot day for the season — August's 98°F is about 21°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, Chełm's warmest days reach the high 70s°F and its coldest nights drop to the low 20s°F. But across the record it has gone as high as 98°F and as low as −24°F. A single day has delivered over 6 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 Lublin Radawiec, a weather station, about 75 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →