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Ontario, WI
Full City Profile · Wisconsin · Vernon County County
3.7
/5.0
B+
Good
380
Population
380/sq mi density
$57,500
Median Income
$28,254 per capita
$130,000
Home Value
$215,382 Zillow
$675
Median Rent
24.0% income on rent
46°F
Avg Temperature
260 sunny days/yr
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$57,500 median income, 1.0% unemployment
A+
Affordability
5.0 / 5.0
$130,000 home value, $675/mo rent
C
Education
2.2 / 5.0
14.5% bachelor's degree or higher
Ontario experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 72°F in July. The area gets 260 sunny days per year. Annual precipitation totals 35.0 inches. The area receives 54.5 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
17°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 46.2°F |
| 14% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 870 ft (265 m) |
| Area | 1.0 sq mi (2.6 km²) |
| Population Density | 380/sq mi |
| Coordinates | 43.7219°N, 90.5932°W |
| Timezone | America/Chicago |
| County | Vernon County County |
| Nearest Airport | La Crosse Regional (LSE) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 75.0 / 100 |
| Social Vulnerability | 79.4 / 100 |
| Community Resilience | 65.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 0.9 in | Coldest, Driest |
| February | 19°F (-7°C) | 0.9 in | |
| March | 31°F (-1°C) | 1.9 in | |
| April | 44°F (7°C) | 3.2 in | |
| May | 57°F (14°C) | 3.5 in | |
| June | 66°F (19°C) | 3.9 in | |
| July | 72°F (22°C) | 4.1 in | Warmest |
| August | 68°F (20°C) | 4.3 in | Wettest |
| September | 60°F (16°C) | 4.1 in | |
| October | 49°F (9°C) | 2.3 in | |
| November | 34°F (1°C) | 2.1 in | |
| December | 20°F (-6°C) | 1.3 in |
Ontario has a seasonal temperature swing of 54°F / from 17°F in January to 72°F in July. Total annual precipitation is 32.5 inches, with August being the wettest month (4.3") and January the driest (0.9").