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Oelwein, IA
Full City Profile · Iowa · Fayette County County
2.9
/5.0
C+
Fair
5,878
Population
1,222/sq mi density
$49,821
Median Income
$28,933 per capita
$96,800
Home Value
$108,925 Zillow
$762
Median Rent
41.2% income on rent
46°F
Avg Temperature
261 sunny days/yr
306
Violent Crime/100K
1,546 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$49,821 median income, 4.1% unemployment
A+
Affordability
5.0 / 5.0
$96,800 home value, $762/mo rent
F
Safety
1.0 / 5.0
306 violent crimes/100K
C
Education
2.3 / 5.0
16.1% bachelor's degree or higher
Oelwein experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 16°F in January while summers reach 72°F in July. The area gets 261 sunny days per year. Air quality is rated Good with a median AQI of 43.
Temperature
16°F Jan (-9°C)
72°F Jul (22°C)
| Annual Average | 46.3°F |
| 14% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 1,037 ft (316 m) |
| Area | 4.9 sq mi (12.6 km²) |
| Population Density | 1,222/sq mi |
| Coordinates | 42.6716°N, 91.9128°W |
| Timezone | America/Chicago |
| County | Fayette County County |
| Nearest Airport | Waterloo Regional (ALO) 26 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 50.9 / 100 |
| Social Vulnerability | 55.4 / 100 |
| Community Resilience | 73.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| 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 | 16°F (-9°C) | 1.0 in | Coldest, Driest |
| February | 21°F (-6°C) | 1.1 in | |
| March | 34°F (1°C) | 2.2 in | |
| April | 47°F (8°C) | 3.5 in | |
| May | 59°F (15°C) | 4.3 in | |
| June | 69°F (20°C) | 4.5 in | |
| July | 72°F (22°C) | 4.3 in | Warmest |
| August | 69°F (21°C) | 4.7 in | Wettest |
| September | 62°F (16°C) | 3.6 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 34°F (1°C) | 2.2 in | |
| December | 21°F (-6°C) | 1.4 in |
Oelwein has a seasonal temperature swing of 56°F / from 16°F in January to 72°F in July. Total annual precipitation is 35.4 inches, with August being the wettest month (4.7") and January the driest (1.0").