Windsor, IL

Full City Profile · Illinois · Mercer County County

3.6 /5.0
B+ Good
753 Population 2,232/sq mi density
$56,944 Median Income $37,239 per capita
$98,200 Home Value $158,046 Zillow
$625 Median Rent 30.5% income on rent
51°F Avg Temperature
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$56,944 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$98,200 home value, $625/mo rent
C
Education
2.0 / 5.0
13.0% bachelor's degree or higher
Windsor experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 23°F in January while summers reach 76°F in July. Annual precipitation totals 37.4 inches. The area receives 26.8 inches of snow annually.

Temperature

23°F Jan (-5°C) 76°F Jul (24°C)
Annual Average51.2°F
5% below US avg
January Average23°F (-5°C)
July Average76°F (24°C)

Geography

Elevation802 ft (244 m)
Area0.2 sq mi (0.4 km²)
Population Density2,232/sq mi
Coordinates41.2018°N, 90.4443°W
TimezoneAmerica/Chicago
CountyMercer County County
Nearest AirportQuad Cities International (MLI)
17 miles away

Precipitation & Snow

Annual Rainfall 37.4"
2% below US avg
Snowfall 26.8"
Wettest Month (May) 4.83"
Driest Month (Jan) 1.69"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score8.8 / 100
Social Vulnerability10.6 / 100
Community Resilience85.7 / 100

Hazard Breakdown

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

Earthquake History

2 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M4.2 on Jun 28, 2004.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 132 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 102 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

661 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 19 fatalities, 481 injuries.

Date Rating Distance Fatalities
Nov 17, 2013 EF4 98 km 3
May 13, 1995 EF4 93 km 0
Mar 29, 1981 EF4 67 km 0
Jun 29, 1976 EF4 73 km 0
Apr 11, 1965 EF4 83 km 1
Apr 4, 2023 EF3 97 km 0
Feb 28, 2017 EF3 96 km 0
Jun 1, 2007 EF3 63 km 0
Apr 20, 2004 EF3 98 km 8
May 13, 1995 EF3 97 km 0
May 9, 1995 EF3 55 km 0
May 9, 1995 EF3 55 km 0
Mar 13, 1990 EF3 46 km 0
May 8, 1988 EF3 67 km 0
Aug 15, 1978 EF3 29 km 0
Mar 4, 1976 EF3 73 km 0
Jul 23, 1975 EF3 74 km 2
Jul 23, 1975 EF3 73 km 0
Jun 13, 1975 EF3 60 km 0
Jun 20, 1974 EF3 88 km 1
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

5 wildfires (100+ acres) within 100 km. Largest: UNIT 3 (1,206 ac, 1999).

Year Name Acres Distance
1999 UNIT 3 1,206 55 km
2002 HSB 03 2 1,130 56 km
2000 DESTRUST A 756 55 km
2006 HSB 003 674 55 km
2004 HSB 009 608 55 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 1.7 in Coldest, Driest
February 28°F (-2°C) 1.9 in
March 40°F (4°C) 2.4 in
April 51°F (11°C) 3.7 in
May 63°F (17°C) 4.8 in Wettest
June 72°F (22°C) 4.1 in
July 76°F (24°C) 3.9 in Warmest
August 73°F (23°C) 3.5 in
September 66°F (19°C) 3.5 in
October 54°F (12°C) 2.9 in
November 40°F (5°C) 2.8 in
December 29°F (-2°C) 2.2 in

Windsor has a seasonal temperature swing of 52°F / from 23°F in January to 76°F in July. Total annual precipitation is 37.4 inches, with May being the wettest month (4.8") and January the driest (1.7").

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