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Weather extremes

How extreme does San Benito's weather get?

The hottest, coldest, wettest and snowiest days San Benito 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 Harlingen station 9 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 San Benito has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
107°F May 10, 2024

That is about 16°F hotter than a normal May afternoon in San Benito (typical high near 91°F).

The three most extreme on record

1 107°F May 10, 2024recent
2 106°F Sep 6, 2000
3 105°F May 12, 1974
❄️ Coldest night
15°F Dec 23, 1989

About 38°F colder than a normal December night in San Benito (typical low near 53°F).

The three most extreme on record

1 15°F Dec 23, 1989
2 15°F Dec 24, 1989
3 18°F Dec 25, 1989
🌧️ Most rain in one day
10.00 in Mar 28, 2025

More rain in a single day than San Benito usually gets in the whole month of March (typical March total about 1.5 in).

The three most extreme on record

1 10.00 in Mar 28, 2025recent
2 9.79 in Apr 6, 1991
3 7.97 in Oct 2, 2021
Most snow in one day
1.5 in Dec 25, 2004

Close to a whole typical December's snow in one day (San Benito averages about 0 in across the month).

Top recorded days

1 1.5 in Dec 25, 2004

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 107°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

San Benito's record heat sits well above even a hot day for the season — May's 107°F is about 16°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 Benito's warmest days reach the high 90s°F and its coldest nights drop to the low 50s°F. But across the record it has gone as high as 107°F and as low as 15°F. A single day has delivered over 10 inches of rain or close to 2 inches of snow. 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 NOAA's U.S. Climate Normals, measured at Harlingen (NOAA GHCN station USC00413943), about 9 km from the city centre.

How we build these numbers →