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Weather extremes

How extreme does Cork's weather get?

The hottest, coldest, wettest and snowiest days Cork 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 Cork station 6 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 Cork has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
82°F Aug 3, 1995

That is about 17°F hotter than a normal August afternoon in Cork (typical high near 65°F).

The three most extreme on record

1 82°F Aug 3, 1995
2 82°F Aug 13, 2022
3 82°F Aug 14, 2022
❄️ Coldest night
14°F Jan 23, 2013

About 24°F colder than a normal January night in Cork (typical low near 38°F).

The three most extreme on record

1 14°F Jan 23, 2013
2 19°F Dec 21, 2010
3 19°F Dec 23, 2010
🌧️ Most rain in one day
7.49 in Jul 1, 1991

More rain in a single day than Cork usually gets in the whole month of July (typical July total about 3.6 in).

The three most extreme on record

1 7.49 in Jul 1, 1991
2 5.92 in Jan 8, 2005
3 5.00 in Sep 14, 2008

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° all-time high 82°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Cork's record heat sits well above even a hot day for the season — August's 82°F is about 17°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, Cork's warmest days reach the mid-60s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 82°F and as low as 14°F. A single day has delivered over 7 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 Cork, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →