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Weather extremes

How extreme does Mazatlán's weather get?

The hottest, coldest, wettest and snowiest days Mazatlán 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 (1973–present), from the Colonia Juan Carras station 2 km away. Updated through May 2026 — 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 Mazatlán has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
105°F Apr 26, 2026

That is about 22°F hotter than a normal April afternoon in Mazatlán (typical high near 83°F).

The three most extreme on record

1 105°F Apr 26, 2026recent
2 104°F Apr 6, 2026
3 102°F Jul 31, 1993
❄️ Coldest night
-12°F Aug 25, 1998

About 89°F colder than a normal August night in Mazatlán (typical low near 77°F).

The three most extreme on record

1 -12°F Aug 25, 1998
2 29°F Jan 17, 1993
3 32°F Apr 11, 1993
🌧️ Most rain in one day
12.48 in Dec 1, 2009

More rain in a single day than Mazatlán usually gets in the whole month of December (typical December total about 0.9 in).

The three most extreme on record

1 12.48 in Dec 1, 2009
2 11.69 in Nov 10, 1974
3 10.00 in Sep 23, 2000

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 105°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Mazatlán's record heat sits well above even a hot day for the season — April's 105°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, Mazatlán's warmest days reach the low 90s°F and its coldest nights drop to the high 50s°F. But across the record it has gone as high as 105°F and as low as −12°F. A single day has delivered over 12 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 — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Siqueros, about 23 km from the city centre.

How we build these numbers →