The hottest, coldest, wettest and snowiest days Carlow has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 17 years of daily weather observations (2008–present), from the Oak Park - Carlow station 2 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 Carlow
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
88°FJul 18, 2022
The three most extreme on record
188°FJul 18, 2022recent
288°FAug 12, 2022
387°FAug 13, 2022
❄️Coldest night
9°FDec 3, 2010
The three most extreme on record
19°FDec 3, 2010
210°FDec 25, 2010
310°FJan 7, 2010
🌧️Most rain in one day
2.04 inSep 6, 2010
The three most extreme on record
12.04 inSep 6, 2010
21.81 inAug 16, 2008
31.69 inAug 2, 2014
In plain terms
Across the record, Carlow has reached as high as 88°F and as low as 9°F. A single day has delivered over 2 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 29 years of daily observations at Dublin Phoenix Park, a weather station, about 71 km from the city centre. The underlying daily records come from NOAA's global station network.