Unionville, MI
Full City Profile · Michigan · Tuscola County County
3.7
/5.0
B+
Good
627
Population
667/sq mi density
$74,356
Median Income
$30,607 per capita
$100,300
Home Value
$145,244 Zillow
$1,196
Median Rent
37.5% income on rent
47°F
Avg Temperature
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$74,356 median income, 2.0% unemployment
A+
Affordability
5.0 / 5.0
$100,300 home value, $1,196/mo rent
D
Education
1.7 / 5.0
8.7% bachelor's degree or higher
Unionville experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 22°F in January while summers reach 71°F in July. Annual precipitation totals 34.3 inches. The area receives 41.6 inches of snow annually. Air quality is rated Good with a median AQI of 34.
Temperature
22°F Jan (-6°C)
71°F Jul (22°C)
| Annual Average | 46.8°F |
| 13% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 620 ft (189 m) |
| Area | 0.9 sq mi (2.4 km²) |
| Population Density | 667/sq mi |
| Coordinates | 43.6535°N, 83.4671°W |
| Timezone | America/Detroit |
| County | Tuscola County County |
| Nearest Airport | Mbs International (MBS) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
| Good Days % | 90.9% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0439 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 73.1 / 100 |
| Social Vulnerability | 59.3 / 100 |
| Community Resilience | 80.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.5 m (5 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 106 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 2.2 in | Coldest |
| February | 23°F (-5°C) | 1.6 in | Driest |
| March | 32°F (0°C) | 1.9 in | |
| April | 44°F (7°C) | 3.6 in | |
| May | 56°F (14°C) | 3.7 in | Wettest |
| June | 66°F (19°C) | 3.6 in | |
| July | 71°F (22°C) | 3.5 in | Warmest |
| August | 69°F (20°C) | 3.3 in | |
| September | 62°F (16°C) | 3.2 in | |
| October | 50°F (10°C) | 3.1 in | |
| November | 38°F (4°C) | 2.5 in | |
| December | 28°F (-2°C) | 2.1 in |
Unionville has a seasonal temperature swing of 49°F / from 22°F in January to 71°F in July. Total annual precipitation is 34.3 inches, with May being the wettest month (3.7") and February the driest (1.6").