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Weather extremes

How extreme does Gresham's weather get?

The hottest, coldest, wettest and snowiest days Gresham 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 Troutdale station 7 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 Gresham has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
110°F Jun 28, 2021

That is about 37°F hotter than a normal June afternoon in Gresham (typical high near 73°F).

The three most extreme on record

1 110°F Jun 28, 2021recent
2 108°F Aug 18, 1977
3 107°F Jun 27, 2021
❄️ Coldest night
-30°F Mar 5, 2007

About 69°F colder than a normal March night in Gresham (typical low near 39°F).

The three most extreme on record

1 -30°F Mar 5, 2007
2 -23°F Mar 4, 2007
3 -22°F Jan 31, 2007
🌧️ Most rain in one day
4.50 in Oct 27, 1994

About 98% of a typical October's rain in a single day (Gresham averages roughly 4.6 in across the month).

The three most extreme on record

1 4.50 in Oct 27, 1994
2 3.56 in Nov 2, 2015
3 3.28 in Nov 19, 1996
Most snow in one day
20.0 in Jan 9, 1980

The three most extreme on record

1 20.0 in Jan 9, 1980
2 6.0 in Mar 3, 1989
3 5.5 in Feb 20, 1993

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 110°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Gresham's record heat sits well above even a hot day for the season — June's 110°F is about 37°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, Gresham's warmest days reach the low 80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 110°F and as low as −30°F. A single day has delivered over 5 inches of rain or close to 20 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 Troutdale (NOAA GHCN station USC00358634), about 7 km from the city centre.

How we build these numbers →