Ontonagon, MI
Full City Profile · Michigan · Ontonagon County County
3.4
/5.0
B
Good
1,266
Population
344/sq mi density
$46,806
Median Income
$32,139 per capita
$92,100
Home Value
$142,016 Zillow
$557
Median Rent
22.6% income on rent
43°F
Avg Temperature
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$46,806 median income, 7.5% unemployment
A+
Affordability
5.0 / 5.0
$92,100 home value, $557/mo rent
C
Education
2.2 / 5.0
15.2% bachelor's degree or higher
Ontonagon has a cool climate with an average annual temperature of 43°F (6°C). Winters average 17°F in January while summers reach 67°F in July. Annual precipitation totals 32.9 inches. The area receives 177.7 inches of snow annually.
Temperature
17°F Jan (-8°C)
67°F Jul (20°C)
| Annual Average | 43.3°F |
| 20% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 67°F (20°C) |
Geography
| Elevation | 642 ft (196 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 344/sq mi |
| Coordinates | 46.8663°N, 89.3124°W |
| Timezone | America/Detroit |
| County | Ontonagon County County |
| Nearest Airport | Marquette/Sawyer Regional (MQT) 99 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 4.2 / 100 |
| Social Vulnerability | 66.2 / 100 |
| Community Resilience | 67.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | No Rating |
| Earthquake | No Rating |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 2.9 in | Coldest |
| February | 19°F (-7°C) | 1.6 in | Driest |
| March | 29°F (-2°C) | 1.7 in | |
| April | 41°F (5°C) | 2.4 in | |
| May | 54°F (12°C) | 3.1 in | |
| June | 63°F (17°C) | 2.9 in | |
| July | 67°F (20°C) | 3.2 in | Warmest |
| August | 66°F (19°C) | 3.0 in | |
| September | 59°F (15°C) | 3.0 in | |
| October | 47°F (8°C) | 3.6 in | Wettest |
| November | 34°F (1°C) | 2.7 in | |
| December | 23°F (-5°C) | 2.9 in |
Ontonagon has a seasonal temperature swing of 50°F / from 17°F in January to 67°F in July. Total annual precipitation is 32.9 inches, with October being the wettest month (3.6") and February the driest (1.6").