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Mount Sterling, IA
Full City Profile · Iowa · Van Buren County County
3.0
/5.0
B
Good
32
Population
100/sq mi density
51°F
Avg Temperature
275 sunny days/yr
95
Violent Crime/100K
3,016 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
95 violent crimes/100K
A+
Education
5.0 / 5.0
0.0% bachelor's degree or higher
Mount Sterling experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 23°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 39.7 inches. The area receives 23.0 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
23°F Jan (-5°C)
75°F Jul (24°C)
| Annual Average | 50.6°F |
| 6% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 652 ft (199 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 100/sq mi |
| Coordinates | 40.6185°N, 91.9354°W |
| Timezone | America/Chicago |
| County | Van Buren County County |
| Nearest Airport | Ottumwa Regional (OTM) 43 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0462 ppm |
| NO₂ (Nitrogen Dioxide) | 2.5 ppb |
| SO₂ (Sulfur Dioxide) | 0.21 ppb |
| PM2.5 (Fine Particles) | 8.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.6 / 100 |
| Social Vulnerability | 71.3 / 100 |
| Community Resilience | 39.1 / 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 | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.4 in | Coldest |
| February | 29°F (-2°C) | 1.1 in | Driest |
| March | 40°F (4°C) | 2.7 in | |
| April | 52°F (11°C) | 3.6 in | |
| May | 62°F (17°C) | 4.1 in | |
| June | 71°F (22°C) | 3.9 in | |
| July | 75°F (24°C) | 4.6 in | Warmest, Wettest |
| August | 74°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 4.5 in | |
| October | 54°F (12°C) | 3.1 in | |
| November | 41°F (5°C) | 2.4 in | |
| December | 28°F (-2°C) | 1.9 in |
Mount Sterling has a seasonal temperature swing of 52°F / from 23°F in January to 75°F in July. Total annual precipitation is 37.3 inches, with July being the wettest month (4.6") and February the driest (1.1").