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Weather & Climate in West Peoria, IL

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

West Peoria experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 76°F in July. The area gets 275 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 37.6 inches. The area receives 26.2 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 591 feet.

Temperature

26°F Jan (-4°C) 76°F Jul (25°C)
Annual Average52.7°F
2% below US avg
January Average26°F (-4°C)
July Average76°F (25°C)
Sunny Days275 days/yr

Geography

Elevation591 ft (180 m)
Area1.3 sq mi (3.3 km²)
Population Density2,012/sq mi
Coordinates40.6970°N, 89.6399°W
TimezoneAmerica/Chicago
CountyPeoria County County
Nearest AirportGeneral Downing - Peoria International (PIA)
4 miles away

Precipitation & Snow

Annual Rainfall 37.6"
1% below US avg
Snowfall 26.2"
Wettest Month (May) 4.06"
Driest Month (Feb) 1.50"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score90.7 / 100
Social Vulnerability50.0 / 100
Community Resilience93.6 / 100

Hazard Breakdown

Tornado Relatively High
Hurricane Very Low
Earthquake Relatively Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively High
Strong Wind Relatively High
Heat Wave Relatively Moderate
Winter Weather Relatively High
Lightning Relatively High
Ice Storm Relatively High
Drought Relatively Moderate
Cold Wave Relatively High
Landslide Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 105 km 10 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 115 km 5 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 131 km 10 km
Mar 15, 2025 6 km W of Dwight, Illinois M2.6 105 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

710 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 25 fatalities, 644 injuries.

Date Rating Distance Path Fatalities
Nov 17, 2013 EF4 10 km 46.4 mi 3
Jul 13, 2004 EF4 29 km 9.6 mi 0
May 13, 1995 EF4 67 km 7.0 mi 0
May 5, 1977 EF4 60 km 7.3 mi 0
Jun 29, 1976 EF4 15 km 4.9 mi 0
Apr 4, 2023 EF3 71 km 19.9 mi 0
Feb 28, 2017 EF3 34 km 17.8 mi 0
Feb 28, 2017 EF3 91 km 11.5 mi 2
Dec 31, 2010 EF3 82 km 3.6 mi 0
Jun 5, 2010 EF3 89 km 8.6 mi 0
Aug 19, 2009 EF3 83 km 24.3 mi 0
Apr 20, 2004 EF3 69 km 15.8 mi 8
May 10, 2003 EF3 26 km 17.5 mi 0
Apr 19, 1996 EF3 49 km 9.4 mi 0
May 13, 1995 EF3 39 km 25.0 mi 0
May 9, 1995 EF3 68 km 22.0 mi 0
May 9, 1995 EF3 91 km 50.0 mi 0
Jun 21, 1981 EF3 99 km 8.8 mi 1
Mar 4, 1976 EF3 56 km 0.8 mi 0
Jul 23, 1975 EF3 48 km 14.0 mi 2
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 26°F (-4°C) 1.5 in Coldest
February 28°F (-2°C) 1.5 in Driest
March 39°F (4°C) 2.9 in
April 51°F (11°C) 3.7 in
May 62°F (17°C) 4.1 in Wettest
June 71°F (22°C) 4.0 in
July 76°F (25°C) 3.9 in Warmest
August 73°F (23°C) 3.4 in
September 66°F (19°C) 3.7 in
October 54°F (12°C) 2.8 in
November 41°F (5°C) 2.8 in
December 28°F (-2°C) 2.4 in

West Peoria has a seasonal temperature swing of 51°F / from 26°F in January to 76°F in July. Total annual precipitation is 36.9 inches, with May being the wettest month (4.1") and February the driest (1.5").

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