Bronson, IA

Full City Profile · Iowa · Woodbury County County

4.0 /5.0
A Great
302 Population 863/sq mi density
$83,500 Median Income $33,854 per capita
$164,600 Home Value $297,927 Zillow
48°F Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.2 / 5.0
$83,500 median income, 5.2% unemployment
A+
Affordability
5.0 / 5.0
$164,600 home value, /mo rent
C+
Education
2.7 / 5.0
21.3% bachelor's degree or higher
Bronson experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 20°F in January while summers reach 74°F in July. Annual precipitation totals 29.3 inches. The area receives 36.0 inches of snow annually. Air quality is rated Good with a median AQI of 43.

Temperature

20°F Jan (-7°C) 74°F Jul (23°C)
Annual Average48.4°F
10% below US avg
January Average20°F (-7°C)
July Average74°F (23°C)

Geography

Elevation1,105 ft (337 m)
Area0.3 sq mi (0.8 km²)
Population Density863/sq mi
Coordinates42.4090°N, 96.2105°W
TimezoneAmerica/Chicago
CountyWoodbury County County
Nearest AirportSioux Gateway/Brig General Bud Day Field (SUX)
9 miles away

Precipitation & Snow

Annual Rainfall 29.3"
23% below US avg
Snowfall 36.0"
Wettest Month (Jun) 4.35"
Driest Month (Jan) 0.69"

Air Quality

AQI Median43.0
RatingGood
Good Days %78.9%
Unhealthy Days0

Air Pollutants (EPA 2023)

PM2.5 (Fine Particles)9.7 μg/m³

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score83.3 / 100
Social Vulnerability39.4 / 100
Community Resilience87.8 / 100

Hazard Breakdown

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

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.6. Most recent: M2.7 on Feb 5, 2025.

Feb 6, 1996 1 km N of Wausa, Nebraska M3.6 110 km
Aug 9, 1997 9 km NW of Clarkson, Nebraska M3.4 106 km
Feb 5, 2025 8 km SSE of Tilden, Nebraska M2.7 140 km
Jun 30, 2021 4 km E of Rembrandt, Iowa M2.7 102 km
Mar 6, 2024 6 km SSE of Santee, Nebraska M2.5 138 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

575 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 14 fatalities, 239 injuries.

Date Rating Distance Fatalities
Jun 16, 2014 EF4 92 km 1
Jun 16, 2014 EF4 84 km 1
Jun 16, 2014 EF4 63 km 0
Oct 4, 2013 EF4 78 km 0
Oct 4, 2013 EF4 12 km 0
Jun 23, 2003 EF4 92 km 1
Jul 28, 1986 EF4 69 km 0
Jul 7, 1977 EF4 50 km 0
Jun 23, 1952 EF4 48 km 0
Jul 15, 1950 EF4 75 km 0
Jun 17, 2014 EF3 87 km 0
Apr 9, 2011 EF3 42 km 0
Apr 9, 2011 EF3 76 km 0
Apr 9, 2011 EF3 90 km 0
Jun 11, 2008 EF3 68 km 4
May 16, 1999 EF3 90 km 0
May 16, 1999 EF3 94 km 2
Jul 5, 1994 EF3 12 km 0
Jun 16, 1992 EF3 91 km 0
May 27, 1991 EF3 63 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 20°F (-7°C) 0.7 in Coldest, Driest
February 25°F (-4°C) 0.9 in
March 37°F (3°C) 1.8 in
April 49°F (9°C) 3.2 in
May 61°F (16°C) 3.9 in
June 71°F (22°C) 4.4 in Wettest
July 74°F (23°C) 3.4 in Warmest
August 72°F (22°C) 3.9 in
September 64°F (18°C) 2.8 in
October 50°F (10°C) 2.2 in
November 36°F (2°C) 1.3 in
December 24°F (-4°C) 1.0 in

Bronson has a seasonal temperature swing of 54°F / from 20°F in January to 74°F in July. Total annual precipitation is 29.3 inches, with June being the wettest month (4.4") and January the driest (0.7").

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