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Weather extremes

How extreme does Cluj-Napoca's weather get?

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

Based on 50+ years of daily weather observations (1971–present), from the Cluj Napoca station 3 km away. Updated through January 2026 — 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 Cluj-Napoca has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
101°F Aug 25, 2012

That is about 20°F hotter than a normal August afternoon in Cluj-Napoca (typical high near 81°F).

The three most extreme on record

1 101°F Aug 25, 2012
2 100°F Jul 22, 2007
3 100°F Jul 24, 2007
❄️ Coldest night
-14°F Jan 15, 1980

About 37°F colder than a normal January night in Cluj-Napoca (typical low near 23°F).

The three most extreme on record

1 -14°F Jan 15, 1980
2 -14°F Jan 13, 1985
3 -13°F Jan 14, 1985
🌧️ Most rain in one day
2.78 in Sep 16, 2023

More rain in a single day than Cluj-Napoca usually gets in the whole month of September (typical September total about 2.2 in).

The three most extreme on record

1 2.78 in Sep 16, 2023recent
2 2.49 in Jun 14, 1989
3 2.39 in Jun 9, 2005

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 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Cluj-Napoca's record heat sits well above even a hot day for the season — August's 101°F is about 20°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, Cluj-Napoca's warmest days reach the low 80s°F and its coldest nights drop to the low 20s°F. But across the record it has gone as high as 101°F and as low as −14°F. A single day has delivered over 3 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 Cluj Napoca, 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 →