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Weather extremes

How extreme does Carrollton's weather get?

The hottest, coldest, wettest and snowiest days Carrollton 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 Dal-Ftw Wscmo Ap station 14 km away. Updated through June 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 Carrollton has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
113°F Jun 26, 1980

That is about 22°F hotter than a normal June afternoon in Carrollton (typical high near 92°F).

The three most extreme on record

1 113°F Jun 26, 1980
2 113°F Jun 27, 1980
3 112°F Jun 28, 1980
❄️ Coldest night
-2°F Feb 16, 2021

About 42°F colder than a normal February night in Carrollton (typical low near 40°F).

The three most extreme on record

1 -2°F Feb 16, 2021recent
2 -1°F Dec 23, 1989
3 3°F Dec 22, 1989
🌧️ Most rain in one day
5.85 in Sep 21, 2018

More rain in a single day than Carrollton usually gets in the whole month of September (typical September total about 2.7 in).

The three most extreme on record

1 5.85 in Sep 21, 2018
2 5.66 in Aug 22, 2022
3 5.24 in Sep 8, 2010
Most snow in one day
11.2 in Feb 11, 2010

Close to a whole typical February's snow in one day (Carrollton averages about 1 in across the month).

The three most extreme on record

1 11.2 in Feb 11, 2010
2 7.5 in Feb 17, 1978
3 4.7 in Nov 13, 1976

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 113°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Carrollton's record heat sits well above even a hot day for the season — June's 113°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, Carrollton's warmest days reach the mid-90s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 113°F and as low as −2°F. A single day has delivered over 6 inches of rain or close to 11 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 Dal-ftw Wscmo AP (NOAA GHCN station USW00003927), about 14 km from the city centre.

How we build these numbers →