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Oskaloosa, IA
Full City Profile · Iowa · Mahaska County County
3.3
/5.0
B
Good
11,492
Population
1,426/sq mi density
$62,172
Median Income
$35,799 per capita
$128,900
Home Value
$181,520 Zillow
$880
Median Rent
24.7% income on rent
50°F
Avg Temperature
275 sunny days/yr
473
Violent Crime/100K
1,787 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$62,172 median income, 2.8% unemployment
A+
Affordability
5.0 / 5.0
$128,900 home value, $880/mo rent
F
Safety
1.0 / 5.0
473 violent crimes/100K (24% above avg)
B
Education
3.1 / 5.0
26.0% bachelor's degree or higher
Oskaloosa experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 22°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 38.7 inches. Air quality is rated Good with a median AQI of 43.
Temperature
22°F Jan (-6°C)
75°F Jul (24°C)
| Annual Average | 50.1°F |
| 7% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 846 ft (258 m) |
| Area | 7.4 sq mi (19.3 km²) |
| Population Density | 1,426/sq mi |
| Coordinates | 41.2922°N, 92.6409°W |
| Timezone | America/Chicago |
| County | Mahaska County County |
| Nearest Airport | Ottumwa Regional (OTM) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 29.7 / 100 |
| Social Vulnerability | 23.0 / 100 |
| Community Resilience | 78.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.1 in | Coldest |
| February | 27°F (-3°C) | 1.0 in | Driest |
| March | 39°F (4°C) | 2.2 in | |
| April | 51°F (11°C) | 3.7 in | |
| May | 62°F (17°C) | 4.2 in | |
| June | 71°F (22°C) | 4.2 in | |
| July | 75°F (24°C) | 4.5 in | Warmest, Wettest |
| August | 73°F (23°C) | 4.0 in | |
| September | 65°F (18°C) | 4.3 in | |
| October | 53°F (12°C) | 2.7 in | |
| November | 39°F (4°C) | 2.4 in | |
| December | 26°F (-3°C) | 1.4 in |
Oskaloosa has a seasonal temperature swing of 54°F / from 22°F in January to 75°F in July. Total annual precipitation is 35.6 inches, with July being the wettest month (4.5") and February the driest (1.0").