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Weather extremes

How extreme does Pendleton's weather get?

The hottest, coldest, wettest and snowiest days Pendleton 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 Anderson station 18 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 Pendleton has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
106°F Jun 28, 1978

That is about 18°F hotter than a normal June afternoon in Pendleton (typical high near 88°F).

The three most extreme on record

1 106°F Jun 28, 1978
2 106°F Jul 13, 1980
3 106°F Jul 2, 2012
❄️ Coldest night
-5°F Jan 21, 1985

About 38°F colder than a normal January night in Pendleton (typical low near 33°F).

The three most extreme on record

1 -5°F Jan 21, 1985
2 2°F Jan 11, 1982
3 4°F Dec 26, 1983
🌧️ Most rain in one day
5.21 in Sep 14, 1973

More rain in a single day than Pendleton usually gets in the whole month of September (typical September total about 3.8 in).

The three most extreme on record

1 5.21 in Sep 14, 1973
2 5.00 in Aug 12, 1991
3 4.90 in Oct 22, 1990
Most snow in one day
7.3 in Jan 22, 1987

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

The three most extreme on record

1 7.3 in Jan 22, 1987
2 5.0 in Mar 2, 2009
3 4.0 in Jan 24, 1977

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 106°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Pendleton's record heat sits well above even a hot day for the season — June's 106°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, Pendleton's warmest days reach the low 90s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 106°F and as low as −5°F. A single day has delivered over 5 inches of rain or close to 7 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 Anderson (NOAA GHCN station USC00380165), about 18 km from the city centre.

How we build these numbers →