Ballwin, MO

Full City Profile · Missouri

4.0 /5.0
A Great
30,835 Population 3,396/sq mi density
$121,170 Median Income $57,206 per capita
$353,400 Home Value $414,140 Zillow
$1,386 Median Rent 30.0% income on rent
56°F Avg Temperature
56 Violent Crime/100K 484 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$121,170 median income, 2.2% unemployment
A+
Affordability
5.0 / 5.0
$353,400 home value, $1,386/mo rent
F
Safety
1.0 / 5.0
56 violent crimes/100K
A+
Education
5.0 / 5.0
65.1% bachelor's degree or higher
Ballwin enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 32°F in January while summers reach 79°F in July. Annual precipitation totals 39.8 inches. The area receives 10.2 inches of snow annually.

Temperature

32°F Jan (-0°C) 79°F Jul (26°C)
Annual Average56.1°F
4% above US avg
January Average32°F (-0°C)
July Average79°F (26°C)

Geography

Elevation659 ft (201 m)
Area9.0 sq mi (23.3 km²)
Population Density3,396/sq mi
Coordinates38.5951°N, 90.5462°W
TimezoneAmerica/Chicago
Nearest AirportSt Louis Lambert International (STL)
14 miles away

Precipitation & Snow

Annual Rainfall 39.8"
5% above US avg
Snowfall 10.2"
Wettest Month (Apr) 4.58"
Driest Month (Feb) 1.98"

Air Quality

Earthquake History

41 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M2.6 on Sep 19, 2024.

Jun 7, 2011 18 km NNW of Potosi, Missouri M3.9 65 km
Mar 2, 1990 9 km NW of Vernon, Illinois M3.4 123 km
Aug 27, 1993 5 km SSE of Olympian Village, Missouri M3.3 57 km
Oct 24, 1990 5 km ENE of Woodlawn, Illinois M3.2 140 km
Jan 29, 1993 7 km WNW of Brownstown, Illinois M3.2 140 km
Dec 27, 1992 2 km E of Pocahontas, Missouri M3.2 146 km
Apr 6, 1994 2 km NE of Tamaroa, Illinois M3.2 126 km
Jul 1, 2017 9 km SSE of Mulberry Grove, Illinois M3.1 118 km
Feb 28, 1994 5 km NW of Harrison, Illinois M3.0 133 km
Jun 27, 2005 6 km E of Grand Tower, Illinois M3.0 145 km
May 18, 2006 9 km SSE of De Soto, Missouri M2.9 60 km
Sep 5, 1995 3 km N of Woodlawn, Illinois M2.9 134 km
Sep 5, 2004 3 km WNW of Saint Peter, Illinois M2.9 147 km
Jul 8, 2003 1 km N of Leasburg, Missouri M2.9 85 km
Apr 29, 2022 1 km SSW of Peerless Park, Missouri M2.8 8 km
Mar 28, 2024 1 km NNE of Germantown, Illinois M2.8 88 km
Sep 13, 1997 3 km SSE of Darmstadt, Illinois M2.8 80 km
Aug 26, 1992 5 km W of Frohna, Missouri M2.8 130 km
Jul 31, 1995 8 km SSW of Caledonia, Missouri M2.8 103 km
May 5, 2008 3 km SSE of Fenton, Missouri M2.8 16 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

568 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 75 fatalities, 1,152 injuries.

Date Rating Distance Fatalities
Nov 17, 2013 EF4 97 km 2
Apr 22, 2011 EF4 17 km 0
Apr 3, 1981 EF4 39 km 0
Jun 22, 1969 EF4 96 km 4
Jun 22, 1969 EF4 87 km 2
Jan 24, 1967 EF4 10 km 3
Feb 10, 1959 EF4 9 km 21
Feb 24, 1956 EF4 36 km 6
Dec 10, 2021 EF3 31 km 1
Dec 10, 2021 EF3 46 km 6
Oct 24, 2021 EF3 100 km 0
May 31, 2013 EF3 20 km 0
May 31, 2013 EF3 41 km 0
Dec 31, 2010 EF3 13 km 1
Mar 13, 2006 EF3 73 km 0
Mar 13, 2006 EF3 88 km 0
Mar 11, 2006 EF3 99 km 2
Mar 11, 2006 EF3 56 km 0
Nov 15, 1988 EF3 48 km 0
Nov 15, 1988 EF3 26 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: SMITH MILL HOLLOW (3,978 ac, 2022).

Year Name Acres Distance
2022 SMITH MILL HOLLOW 3,978 82 km
2005 UNNAMED 2,751 98 km
2019 UNNAMED 2,688 83 km
2021 BEAR PAW 2,080 97 km
2024 BEAR PAW RX 2,067 97 km
2004 CICERO CREEK 1,846 75 km
2021 BERRYMAN BLOCK B AND C 1,728 86 km
2015 UNNAMED 1,586 98 km
2010 DELBRIDGE SOUTH 1,574 98 km
2024 HARMON SPRING RX 1,330 81 km
2018 UNNAMED 1,285 81 km
2013 UNNAMED 1,196 96 km
2024 RENAULT 1,085 88 km
2013 UNNAMED 820 96 km
2024 FLATWOODS RX 796 82 km
2022 NORTH KOFFER HOLLOW 783 85 km
2005 UNNAMED 741 88 km
1995 UNNAMED 724 88 km
2015 UNNAMED 630 96 km
1989 UNNAMED 600 79 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 32°F (-0°C) 2.4 in Coldest
February 36°F (2°C) 2.0 in Driest
March 46°F (8°C) 3.5 in
April 56°F (14°C) 4.6 in Wettest
May 66°F (19°C) 4.6 in
June 75°F (24°C) 4.3 in
July 79°F (26°C) 3.3 in Warmest
August 77°F (25°C) 3.4 in
September 69°F (20°C) 3.0 in
October 57°F (14°C) 3.1 in
November 45°F (7°C) 3.3 in
December 36°F (2°C) 2.3 in

Ballwin has a seasonal temperature swing of 47°F / from 32°F in January to 79°F in July. Total annual precipitation is 39.8 inches, with April being the wettest month (4.6") and February the driest (2.0").

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