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Sioux City, IA
Full City Profile · Iowa · Dakota County County
3.1
/5.0
B
Good
85,651
Population
1,448/sq mi density
$65,473
Median Income
$32,696 per capita
$162,600
Home Value
$192,452 Zillow
$936
Median Rent
26.2% income on rent
52°F
Avg Temperature
296 sunny days/yr
445
Violent Crime/100K
3,890 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$65,473 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$162,600 home value, $936/mo rent
F
Safety
1.0 / 5.0
445 violent crimes/100K (17% above avg)
C+
Education
2.7 / 5.0
21.7% bachelor's degree or higher
Sioux City experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 21°F in January while summers reach 75°F in July. The area gets 296 sunny days per year. Annual precipitation totals 30.3 inches. The area receives 36.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
21°F Jan (-6°C)
75°F Jul (24°C)
| Annual Average | 51.6°F |
| 4% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 296 days/yr |
Geography
| Elevation | 1,102 ft (336 m) |
| Area | 59.2 sq mi (153.2 km²) |
| Population Density | 1,448/sq mi |
| Coordinates | 42.4953°N, 96.3899°W |
| Timezone | America/Chicago |
| County | Dakota County County |
| Nearest Airport | Sioux Gateway/Brig General Bud Day Field (SUX) 6 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 36.0 / 100 |
| Social Vulnerability | 34.2 / 100 |
| Community Resilience | 8.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 0.6 in | Coldest, Driest |
| February | 25°F (-4°C) | 0.6 in | |
| March | 37°F (3°C) | 2.0 in | |
| April | 50°F (10°C) | 2.8 in | |
| May | 61°F (16°C) | 3.8 in | Wettest |
| June | 71°F (22°C) | 3.8 in | |
| July | 75°F (24°C) | 3.3 in | Warmest |
| August | 73°F (23°C) | 2.9 in | |
| September | 64°F (18°C) | 2.7 in | |
| October | 52°F (11°C) | 2.1 in | |
| November | 35°F (2°C) | 1.4 in | |
| December | 23°F (-5°C) | 0.7 in |
Sioux City has a seasonal temperature swing of 54°F / from 21°F in January to 75°F in July. Total annual precipitation is 26.6 inches, with May being the wettest month (3.8") and January the driest (0.6").