Unionville, IA
Full City Profile · Iowa · Appanoose County County
1.7
/5.0
D
Poor
86
Population
115/sq mi density
$84,000
Home Value
$215,725 Zillow
50°F
Avg Temperature
D
Overall
1.7 / 5.0
Below average overall score based on economy, affordability, safety and education
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. Annual precipitation totals 38.6 inches. The area receives 21.5 inches of snow annually.
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) |
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
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, Driest |
| February | 26°F (-3°C) | 1.5 in | |
| March | 39°F (4°C) | 2.0 in | |
| April | 50°F (10°C) | 3.9 in | |
| May | 61°F (16°C) | 5.4 in | Wettest |
| June | 71°F (22°C) | 5.2 in | |
| July | 75°F (24°C) | 4.6 in | Warmest |
| August | 74°F (23°C) | 4.6 in | |
| September | 65°F (18°C) | 3.8 in | |
| October | 53°F (12°C) | 2.9 in | |
| November | 40°F (4°C) | 2.0 in | |
| December | 28°F (-2°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 38.6 inches, with May being the wettest month (5.4") and January the driest (1.1").