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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 34 years of daily weather observations (1991–present), from the Greater Peoria Regional Airport station 9 km away. Updated through August 2025 — 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
104°F Jul 24, 2005

That is about 17°F hotter than a normal July afternoon in Peoria (typical high near 87°F).

The three most extreme on record

1 104°F Jul 24, 2005
2 104°F Jul 25, 2005
3 104°F Jul 7, 2012
❄️ Coldest night
-21°F Jan 19, 1994

About 38°F colder than a normal January night in Peoria (typical low near 17°F).

The three most extreme on record

1 -21°F Jan 19, 1994
2 -21°F Jan 16, 2009
3 -20°F Jan 30, 2019
🌧️ Most rain in one day
5.19 in Jul 16, 2020

More rain in a single day than Peoria usually gets in the whole month of July (typical July total about 3.7 in).

The three most extreme on record

1 5.19 in Jul 16, 2020
2 3.67 in Sep 14, 2008
3 3.49 in Sep 28, 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 104°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 — July's 104°F is about 17°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 high 80s°F and its coldest nights drop to the high 10s°F. But across the record it has gone as high as 104°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 — 1991–2020 normals computed from 30 years of daily observations at Greater Peoria Regional Airport, a weather station, about 9 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →