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Weather extremes

How extreme does Callao's weather get?

The hottest, coldest, wettest and snowiest days Callao 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 Jorge Chavez Intl station 4 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 Callao has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
92°F Mar 10, 2017

That is about 11°F hotter than a normal March afternoon in Callao (typical high near 81°F).

The three most extreme on record

1 92°F Mar 10, 2017
2 91°F Mar 5, 1997
3 91°F Jan 6, 1998
❄️ Coldest night
32°F Oct 24, 1993

About 29°F colder than a normal October night in Callao (typical low near 61°F).

The three most extreme on record

1 32°F Oct 24, 1993
2 39°F Jul 12, 1992
3 45°F May 16, 2005
🌧️ Most rain in one day
10.67 in Jan 29, 1995

More rain in a single day than Callao usually gets in the whole month of January (typical January total about 0.4 in).

The three most extreme on record

1 10.67 in Jan 29, 1995
2 4.09 in Mar 13, 2001
3 0.87 in Jun 3, 2012

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° all-time high 92°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Callao's record heat sits well above even a hot day for the season — March's 92°F is about 11°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, Callao's warmest days reach the low 80s°F and its coldest nights drop to the low 60s°F. But across the record it has gone as high as 92°F and as low as 32°F. A single day has delivered over 11 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 28 years of daily observations at Jorge Chavez Intl, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →