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Weather extremes

How extreme does Stillwater's weather get?

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

Based on 24 years of daily weather observations (2002–present), from the Stillwater 2 W station 3 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 Stillwater has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
112°F Aug 2, 2011

That is about 19°F hotter than a normal August afternoon in Stillwater (typical high near 93°F).

The three most extreme on record

1 112°F Aug 2, 2011
2 112°F Aug 1, 2012
3 111°F Jul 9, 2011
❄️ Coldest night
-21°F Feb 10, 2011

About 51°F colder than a normal February night in Stillwater (typical low near 30°F).

The three most extreme on record

1 -21°F Feb 10, 2011
2 -15°F Feb 16, 2021
3 -9°F Feb 15, 2021
🌧️ Most rain in one day
5.23 in Jun 1, 2007

More rain in a single day than Stillwater usually gets in the whole month of June (typical June total about 4.6 in).

The three most extreme on record

1 5.23 in Jun 1, 2007
2 4.57 in Apr 29, 2017
3 4.30 in May 20, 2019

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.

-50°-30°-10°10°30°50°70°90°110°130° all-time high 112°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Stillwater's record heat sits well above even a hot day for the season — August's 112°F is about 19°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, Stillwater's warmest days reach the mid-90s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 112°F and as low as −21°F. A single day has delivered over 5 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 Stillwater 2 W (NOAA GHCN station USW00053926), about 3 km from the city centre.

How we build these numbers →