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Unionville, IA
Full City Profile · Iowa · Appanoose County County
1.3
/5.0
F
Poor
86
Population
115/sq mi density
$84,000
Home Value
$201,399 Zillow
50°F
Avg Temperature
275 sunny days/yr
295
Violent Crime/100K
4,144 property/100K
F
Overall
1.3 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
295 violent crimes/100K
D
Education
1.7 / 5.0
8.2% bachelor's degree or higher
Unionville 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 38.6 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 | 50.4°F |
| 7% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 949 ft (289 m) |
| Area | 0.7 sq mi (1.9 km²) |
| Population Density | 115/sq mi |
| Coordinates | 40.8181°N, 92.6958°W |
| Timezone | America/Chicago |
| County | Appanoose County County |
| Nearest Airport | Ottumwa Regional (OTM) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 41.2 / 100 |
| Social Vulnerability | 70.0 / 100 |
| Community Resilience | 60.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Relatively 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 | 28°F (-2°C) | 1.0 in | Driest |
| March | 39°F (4°C) | 2.5 in | |
| April | 51°F (11°C) | 3.4 in | |
| May | 62°F (17°C) | 4.3 in | |
| June | 71°F (22°C) | 4.3 in | |
| July | 75°F (24°C) | 4.6 in | Warmest, Wettest |
| August | 74°F (23°C) | 4.1 in | |
| September | 65°F (18°C) | 4.3 in | |
| October | 54°F (12°C) | 3.0 in | |
| November | 40°F (4°C) | 2.2 in | |
| December | 27°F (-3°C) | 1.5 in |
Unionville has a seasonal temperature swing of 53°F / from 22°F in January to 75°F in July. Total annual precipitation is 36.2 inches, with July being the wettest month (4.6") and February the driest (1.0").