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Weather extremes

How extreme does San José de Mayo's weather get?

The hottest, coldest, wettest and snowiest days San José de Mayo has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 30 years of daily weather observations (1995–present), from the Florida station 53 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 San José de Mayo has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
111°F Feb 4, 2007

That is about 25°F hotter than a normal February afternoon in San José de Mayo (typical high near 86°F).

The three most extreme on record

1 111°F Feb 4, 2007
2 110°F Jan 14, 2022
3 106°F Dec 26, 2013
❄️ Coldest night
17°F Jun 19, 2015

About 24°F colder than a normal June night in San José de Mayo (typical low near 41°F).

The three most extreme on record

1 17°F Jun 19, 2015
2 19°F Jul 29, 2007
3 20°F Jul 30, 2007
🌧️ Most rain in one day
6.97 in Mar 20, 2024

More rain in a single day than San José de Mayo usually gets in the whole month of March (typical March total about 5.1 in).

The three most extreme on record

1 6.97 in Mar 20, 2024recent
2 6.77 in Mar 17, 2002
3 6.14 in Dec 30, 2002

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°10°30°50°70°90°110°130° all-time high 111°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

San José de Mayo's record heat sits well above even a hot day for the season — February's 111°F is about 25°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, San José de Mayo's warmest days reach the high 80s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 111°F and as low as 17°F. A single day has delivered over 7 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 Carrasco Intl, a weather station, about 84 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →