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Weather extremes

How extreme does Buenos Aires's weather get?

The hottest, coldest, wettest and snowiest days Buenos Aires 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 Aeroparque Jorge Newbery station 7 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 Buenos Aires has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
102°F Dec 18, 1995

That is about 20°F hotter than a normal December afternoon in Buenos Aires (typical high near 83°F).

The three most extreme on record

1 102°F Dec 18, 1995
2 100°F Mar 23, 1991
3 100°F Dec 26, 2013
❄️ Coldest night
30°F Aug 1, 1991

About 19°F colder than a normal August night in Buenos Aires (typical low near 49°F).

The three most extreme on record

1 30°F Aug 1, 1991
2 32°F Jun 24, 1992
3 32°F Jul 18, 1992
🌧️ Most rain in one day
9.72 in Feb 27, 2022

More rain in a single day than Buenos Aires usually gets in the whole month of February (typical February total about 4.4 in).

The three most extreme on record

1 9.72 in Feb 27, 2022recent
2 8.50 in Oct 26, 2008
3 7.48 in Oct 21, 1995

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°30°50°70°90°110°130° all-time high 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Buenos Aires's record heat sits well above even a hot day for the season — December's 102°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, Buenos Aires's warmest days reach the mid-80s°F and its coldest nights drop to the high 40s°F. But across the record it has gone as high as 102°F and as low as 30°F. A single day has delivered over 10 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 Aeroparque Jorge Newbery, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →