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Charlotte, IA

Full City Profile · Iowa · Clinton County County

3.1 /5.0
B Good
431 Population 756/sq mi density
$69,792 Median Income $35,200 per capita
$95,500 Home Value $248,201 Zillow
$704 Median Rent 28.5% income on rent
50°F Avg Temperature 275 sunny days/yr
165 Violent Crime/100K 3,111 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$69,792 median income, 1.9% unemployment
A+
Affordability
5.0 / 5.0
$95,500 home value, $704/mo rent
F
Safety
1.0 / 5.0
165 violent crimes/100K
C
Education
2.1 / 5.0
14.2% bachelor's degree or higher
Charlotte 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 36.5 inches. The area receives 31.9 inches of snow annually. Air quality is rated Good with a median AQI of 43.

Temperature

22°F Jan (-6°C) 74°F Jul (24°C)
Annual Average50.2°F
7% below US avg
January Average22°F (-6°C)
July Average74°F (24°C)
Sunny Days275 days/yr

Geography

Elevation666 ft (203 m)
Area0.6 sq mi (1.5 km²)
Population Density756/sq mi
Coordinates41.9622°N, 90.4683°W
TimezoneAmerica/Chicago
CountyClinton County County
Nearest AirportDubuque Regional (DBQ)
33 miles away

Precipitation & Snow

Annual Rainfall 36.5"
4% below US avg
Snowfall 31.9"
Wettest Month (Jun) 4.53"
Driest Month (Feb) 1.22"

Air Quality

AQI Median43.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0477 ppm
SO₂ (Sulfur Dioxide)1.32 ppb
PM2.5 (Fine Particles)11.0 μg/m³

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score64.8 / 100
Social Vulnerability34.6 / 100
Community Resilience87.5 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Low
Hail Relatively Moderate
Strong Wind Relatively High
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

3 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M3.1 on Jul 15, 2024.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 142 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 90 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 150 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

653 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 9 fatalities, 266 injuries.

Date Rating Distance Fatalities
Apr 9, 2015 EF4 98 km 2
Mar 13, 1990 EF4 84 km 0
Mar 29, 1981 EF4 53 km 0
Aug 12, 1974 EF4 94 km 0
Apr 11, 1965 EF4 40 km 1
Jun 1, 2007 EF3 98 km 0
May 9, 1995 EF3 92 km 0
May 9, 1995 EF3 54 km 0
Jun 19, 1993 EF3 45 km 0
Jul 13, 1992 EF3 60 km 0
Mar 13, 1990 EF3 43 km 0
May 8, 1988 EF3 35 km 0
May 8, 1988 EF3 71 km 0
Aug 5, 1979 EF3 74 km 0
Aug 15, 1978 EF3 81 km 0
Jun 20, 1974 EF3 17 km 1
Jun 14, 1974 EF3 67 km 0
May 13, 1974 EF3 40 km 0
Jul 12, 1971 EF3 95 km 0
Sep 9, 1970 EF3 62 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-6°C) 1.3 in Coldest
February 24°F (-4°C) 1.2 in Driest
March 36°F (2°C) 2.4 in
April 49°F (9°C) 3.4 in
May 61°F (16°C) 3.9 in
June 70°F (21°C) 4.5 in Wettest
July 74°F (24°C) 3.7 in Warmest
August 71°F (22°C) 4.3 in
September 63°F (17°C) 3.8 in
October 52°F (11°C) 2.7 in
November 37°F (3°C) 2.4 in
December 25°F (-4°C) 1.9 in

Charlotte has a seasonal temperature swing of 53°F / from 22°F in January to 74°F in July. Total annual precipitation is 35.7 inches, with June being the wettest month (4.5") and February the driest (1.2").

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