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Weather extremes

How extreme does Valle Hermoso's weather get?

The hottest, coldest, wettest and snowiest days Valle Hermoso 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 Weslaco station 58 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 Valle Hermoso has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F May 10, 2024

That is about 18°F hotter than a normal May afternoon in Valle Hermoso (typical high near 90°F).

The three most extreme on record

1 108°F May 10, 2024recent
2 107°F Sep 6, 2000
3 107°F Jun 22, 2023
❄️ Coldest night
0°F Jul 30, 2014

About 76°F colder than a normal July night in Valle Hermoso (typical low near 77°F).

The three most extreme on record

1 0°F Jul 30, 2014
2 16°F Dec 23, 1989
3 17°F Apr 5, 1983
🌧️ Most rain in one day
8.60 in Mar 28, 2025

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

The three most extreme on record

1 8.60 in Mar 28, 2025recent
2 8.50 in Sep 30, 1985
3 7.88 in Jul 1, 2010

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 108°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Valle Hermoso's record heat sits well above even a hot day for the season — May's 108°F is about 18°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, Valle Hermoso'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 108°F and as low as 0°F. A single day has delivered over 9 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 NOAA's U.S. Climate Normals, measured at Harlingen (NOAA GHCN station USC00413943), about 61 km from the city centre.

How we build these numbers →