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Weather extremes

How extreme does Peoria's weather get?

The hottest, coldest, wettest and snowiest days Peoria 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 Youngtown station 6 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 Peoria has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
122°F Jun 26, 1990

That is about 20°F hotter than a normal June afternoon in Peoria (typical high near 102°F).

The three most extreme on record

1 122°F Jun 26, 1990
2 122°F Jul 28, 1995
3 121°F Jul 29, 1995
❄️ Coldest night
8°F Aug 31, 1995

About 71°F colder than a normal August night in Peoria (typical low near 79°F).

The three most extreme on record

1 8°F Aug 31, 1995
2 20°F Jan 8, 1971
3 21°F Jan 5, 1972
🌧️ Most rain in one day
2.73 in Aug 24, 1982

More rain in a single day than Peoria usually gets in the whole month of August (typical August total about 1.0 in).

The three most extreme on record

1 2.73 in Aug 24, 1982
2 2.63 in Sep 8, 2014
3 2.62 in Jul 24, 1992
Most snow in one day
0.5 in Mar 4, 2004

Top recorded days

1 0.5 in Mar 4, 2004

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°150° all-time high 122°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Peoria's record heat sits well above even a hot day for the season — June's 122°F is about 20°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, Peoria's warmest days reach the mid-100s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 122°F and as low as 8°F. A single day has delivered over 3 inches of rain or close to 1 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 Youngtown (NOAA GHCN station USC00029634), about 6 km from the city centre.

How we build these numbers →