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Dover, IL

Full City Profile · Illinois · Bureau County County

3.0 /5.0
B Good
122 Population 452/sq mi density
$44,766 Median Income $31,984 per capita
$108,900 Home Value $165,646 Zillow
$825 Median Rent 17.9% income on rent
50°F Avg Temperature 275 sunny days/yr
189 Violent Crime/100K 1,618 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$44,766 median income, 1.8% unemployment
A+
Affordability
5.0 / 5.0
$108,900 home value, $825/mo rent
F
Safety
1.0 / 5.0
189 violent crimes/100K
C
Education
2.1 / 5.0
13.3% bachelor's degree or higher
Dover experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 22°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 39.8 inches. The area receives 28.5 inches of snow annually. Air quality is rated Good with a median AQI of 43.

Temperature

22°F Jan (-6°C) 74°F Jul (23°C)
Annual Average49.7°F
8% below US avg
January Average22°F (-6°C)
July Average74°F (23°C)
Sunny Days275 days/yr

Geography

Elevation746 ft (227 m)
Area0.1 sq mi (0.3 km²)
Population Density452/sq mi
Coordinates41.4342°N, 89.3958°W
TimezoneAmerica/Chicago
CountyBureau County County
Nearest AirportIllinois Valley Regional-Walter A Duncan Field (VYS)
14 miles away

Precipitation & Snow

Annual Rainfall 39.8"
5% above US avg
Snowfall 28.5"
Wettest Month (Jun) 4.25"
Driest Month (Feb) 1.22"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score62.3 / 100
Social Vulnerability41.7 / 100
Community Resilience80.1 / 100

Hazard Breakdown

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

Earthquake History

8 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M2.6 on Mar 15, 2025.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 41 km
Feb 10, 2010 2 km NW of Lily Lake, Illinois M3.8 95 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 32 km
Nov 4, 2013 1 km SSW of Lyons, Illinois M3.2 137 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 62 km
Mar 25, 2015 3 km WNW of Lake in the Hills, Illinois M2.9 120 km
Jun 10, 2013 4 km NNE of Virgil, Illinois M2.6 96 km
Mar 15, 2025 6 km W of Dwight, Illinois M2.6 84 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

646 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 76 fatalities, 1,299 injuries.

Date Rating Distance Fatalities
Aug 28, 1990 EF5 91 km 29
Apr 9, 2015 EF4 47 km 2
Nov 17, 2013 EF4 92 km 3
Jul 13, 2004 EF4 71 km 0
Mar 29, 1981 EF4 54 km 0
Jun 29, 1979 EF4 98 km 0
Jun 29, 1976 EF4 77 km 0
Apr 21, 1967 EF4 96 km 24
Feb 28, 2017 EF3 39 km 2
Feb 28, 2017 EF3 58 km 0
Jun 22, 2015 EF3 86 km 0
Jun 5, 2010 EF3 67 km 0
Apr 20, 2004 EF3 23 km 8
May 9, 1995 EF3 37 km 0
Mar 13, 1990 EF3 76 km 0
Apr 27, 1984 EF3 90 km 1
Aug 5, 1979 EF3 67 km 0
Jun 30, 1977 EF3 37 km 0
Mar 12, 1976 EF3 90 km 0
Mar 4, 1976 EF3 30 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-6°C) 1.4 in Coldest
February 25°F (-4°C) 1.2 in Driest
March 37°F (3°C) 2.6 in
April 49°F (10°C) 3.7 in
May 61°F (16°C) 4.0 in
June 70°F (21°C) 4.3 in Wettest
July 74°F (23°C) 3.8 in Warmest
August 72°F (22°C) 4.1 in
September 64°F (18°C) 3.8 in
October 52°F (11°C) 2.7 in
November 39°F (4°C) 2.5 in
December 26°F (-3°C) 2.1 in

Dover has a seasonal temperature swing of 52°F / from 22°F in January to 74°F in July. Total annual precipitation is 36.1 inches, with June being the wettest month (4.3") and February the driest (1.2").

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