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Weather extremes

How extreme does Bahía Blanca's weather get?

The hottest, coldest, wettest and snowiest days Bahía Blanca 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 Bahia Blanca Aero station 9 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 Bahía Blanca has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
111°F Jan 21, 1980

That is about 22°F hotter than a normal January afternoon in Bahía Blanca (typical high near 89°F).

The three most extreme on record

1 111°F Jan 21, 1980
2 110°F Jan 14, 2022
3 108°F Dec 25, 1971
❄️ Coldest night
-7°F Jan 4, 2004

About 68°F colder than a normal January night in Bahía Blanca (typical low near 61°F).

The three most extreme on record

1 -7°F Jan 4, 2004
2 11°F Jul 4, 1988
3 13°F Jul 5, 1988
🌧️ Most rain in one day
13.19 in Nov 14, 1978

More rain in a single day than Bahía Blanca usually gets in the whole month of November (typical November total about 2.2 in).

The three most extreme on record

1 13.19 in Nov 14, 1978
2 13.03 in Dec 11, 1977
3 12.09 in Dec 8, 2021

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 111°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Bahía Blanca's record heat sits well above even a hot day for the season — January's 111°F is about 22°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, Bahía Blanca's warmest days reach the high 80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 111°F and as low as −7°F. A single day has delivered over 13 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 23 years of daily observations at Bahia Blanca Aero, a weather station, about 9 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →