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St. Charles, MO

Full City Profile · Missouri

3.8 /5.0
B+ Good
71,048 Population 2,818/sq mi density
$85,522 Median Income $49,196 per capita
$280,800 Home Value $431,539 Zillow
$1,186 Median Rent 24.7% income on rent
56°F Avg Temperature 260 sunny days/yr
184 Violent Crime/100K 2,500 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$85,522 median income, 1.5% unemployment
A+
Affordability
4.8 / 5.0
$280,800 home value, $1,186/mo rent
F
Safety
1.0 / 5.0
184 violent crimes/100K
A+
Education
4.5 / 5.0
44.2% bachelor's degree or higher
St. Charles enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 34°F in January while summers reach 77°F in July. The area gets 260 sunny days per year. Annual precipitation totals 42.0 inches. The area receives 3.2 inches of snow annually. Air quality is rated Good with a median AQI of 41.

Temperature

34°F Jan (1°C) 77°F Jul (25°C)
Annual Average56.0°F
4% above US avg
January Average34°F (1°C)
July Average77°F (25°C)
Sunny Days260 days/yr

Geography

Elevation226 ft (69 m)
Area24.0 sq mi (62.2 km²)
Population Density2,818/sq mi
Coordinates38.6073°N, 76.9248°W
TimezoneAmerica/Chicago
Nearest AirportRonald Reagan Washington Ntl (DCA)
18 miles away

Precipitation & Snow

Annual Rainfall 42.0"
10% above US avg
Snowfall 3.2"
Wettest Month (Aug) 4.13"
Driest Month (Feb) 2.87"

Air Quality

AQI Median41.0
RatingGood

Earthquake History

42 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.8. Most recent: M2.8 on Jan 14, 2025.

Aug 23, 2011 11 km SSW of Mineral, Virginia M5.8 118 km
Aug 25, 2011 8 km SW of Mineral, Virginia M4.5 117 km
Aug 24, 2011 11 km SSW of Mineral, Virginia M4.2 118 km
Mar 15, 1991 7 km NNW of Goochland, Virginia M3.8 129 km
Jul 16, 2010 5 km NNW of Barnesville, Maryland M3.6 84 km
May 5, 2003 Virginia M3.6 142 km
Aug 24, 2011 16 km NNW of Goochland, Virginia M3.4 125 km
Sep 1, 2011 7 km SSW of Mineral, Virginia M3.4 114 km
Sep 22, 2001 5 km E of Pantops, Virginia M3.2 144 km
Jan 30, 2012 9 km SSE of Louisa, Virginia M3.1 118 km
Jan 17, 2016 3 km NE of Ranson, West Virginia M3.0 111 km
Oct 2, 2010 10 km NNW of Ashland, Virginia M3.0 99 km
Oct 12, 2011 9 km S of Louisa, Virginia M3.0 119 km
Mar 26, 2012 13 km S of Louisa, Virginia M3.0 121 km
Aug 3, 1995 13 km N of Williamsburg, Virginia M2.9 137 km
Sep 15, 2019 5 km ESE of East Berlin, Pennsylvania M2.8 147 km
Aug 23, 2011 9 km SSW of Mineral, Virginia M2.8 116 km
Mar 15, 2015 6 km SW of Mineral, Virginia M2.8 115 km
Jan 14, 2025 1 km NNE of Wyndham, Virginia M2.8 117 km
Feb 19, 2012 12 km S of Louisa, Virginia M2.7 120 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

7 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Arthur (2014, Cat 1).

Year Name Category Closest
2014 Arthur Category 2 300 km
2011 Irene Category 1 177 km
2003 Isabel Category 1 223 km
1999 Floyd Category 1 214 km
1991 Bob Category 3 295 km
1986 Charley Category 1 202 km
1985 Gloria Category 2 212 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tornado History

431 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 10 fatalities, 416 injuries.

Date Rating Distance Fatalities
Apr 28, 2002 EF4 23 km 3
Sep 24, 2001 EF4 92 km 0
Feb 24, 2016 EF3 90 km 0
Sep 17, 2004 EF3 77 km 0
Apr 28, 2002 EF3 58 km 0
Sep 24, 2001 EF3 36 km 2
Jul 19, 1996 EF3 99 km 0
Oct 18, 1990 EF3 97 km 0
Sep 5, 1979 EF3 24 km 1
Jan 26, 1978 EF3 35 km 1
Apr 1, 1973 EF3 41 km 0
Nov 2, 1966 EF3 73 km 0
Jun 9, 1961 EF3 71 km 0
Sep 1, 2021 EF2 39 km 0
May 3, 2021 EF2 79 km 0
Nov 2, 2018 EF2 85 km 0
Jul 23, 2017 EF2 64 km 0
May 8, 2008 EF2 59 km 0
Sep 17, 2004 EF2 74 km 0
Sep 17, 2004 EF2 72 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: BESTPITCH (7,743 ac, 2017).

Year Name Acres Distance
2017 BESTPITCH 7,743 84 km
2004 RETAINING ECOLOGICAL HEALTH 5,678 78 km
2014 BLACKWATER MARSH WUI BURNS FY14 5,433 79 km
2005 MARSH RX-FWS 4,380 81 km
2007 GUINEA MARSH 4,173 88 km
2009 DOCTORS CREEK 3,686 87 km
1999 FB R O C I 3,525 82 km
2019 MDBWR-FY19-RX-MDWHS SUPPORT 3,197 80 km
2011 COMPARTMENT J 2,775 80 km
2005 ISLAND CREEK 2,729 88 km
2004 UNNAMED 2,156 88 km
1992 UNNAMED 2,038 84 km
2005 VEGETATION RESEARCH 1,926 85 km
2011 THOROFARE 1,850 84 km
1987 UNNAMED 1,692 77 km
2004 ROBBINS FIRE 1,612 81 km
2004 BLACKWATER HAZARD FUEL REDUCTION 1,518 72 km
2009 BECKERS ISLAND 1,398 81 km
2022 ELLIOTTS ISLAND 1,324 89 km
2006 UNNAMED 1,260 77 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 34°F (1°C) 3.2 in Coldest
February 37°F (3°C) 2.9 in Driest
March 45°F (7°C) 3.6 in
April 55°F (13°C) 3.2 in
May 64°F (18°C) 3.9 in
June 72°F (22°C) 3.6 in
July 77°F (25°C) 3.9 in Warmest
August 75°F (24°C) 4.1 in Wettest
September 69°F (20°C) 3.7 in
October 57°F (14°C) 3.3 in
November 48°F (9°C) 3.4 in
December 39°F (4°C) 3.2 in

St. Charles has a seasonal temperature swing of 43°F / from 34°F in January to 77°F in July. Total annual precipitation is 42.0 inches, with August being the wettest month (4.1") and February the driest (2.9").

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