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Mount Vernon, IN
Full City Profile · Indiana · Union County County
3.5
/5.0
B+
Good
6,431
Population
2,233/sq mi density
$61,527
Median Income
$35,341 per capita
$164,200
Home Value
$216,685 Zillow
$726
Median Rent
28.0% income on rent
56°F
Avg Temperature
305 sunny days/yr
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$61,527 median income, 3.6% unemployment
A+
Affordability
5.0 / 5.0
$164,200 home value, $726/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C+
Education
2.6 / 5.0
20.3% bachelor's degree or higher
Mount Vernon enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 32°F in January while summers reach 77°F in July. The area gets 305 sunny days per year. Annual precipitation totals 46.6 inches. The area receives 8.4 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
32°F Jan (0°C)
77°F Jul (25°C)
| Annual Average | 56.0°F |
| 4% above US avg | |
| January Average | 32°F (0°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 305 days/yr |
Geography
| Elevation | 420 ft (128 m) |
| Area | 2.9 sq mi (7.4 km²) |
| Population Density | 2,233/sq mi |
| Coordinates | 37.9370°N, 87.8959°W |
| Timezone | America/Indiana/Indianapolis |
| County | Union County County |
| Nearest Airport | Evansville Regional (EVV) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 42.8 / 100 |
| Social Vulnerability | 69.3 / 100 |
| Community Resilience | 34.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 3.0 in | Coldest |
| February | 36°F (2°C) | 3.2 in | |
| March | 46°F (8°C) | 4.7 in | |
| April | 56°F (13°C) | 4.4 in | |
| May | 66°F (19°C) | 5.1 in | Wettest |
| June | 74°F (24°C) | 4.0 in | |
| July | 77°F (25°C) | 4.1 in | Warmest |
| August | 76°F (25°C) | 3.2 in | |
| September | 70°F (21°C) | 2.8 in | Driest |
| October | 58°F (15°C) | 2.9 in | |
| November | 47°F (8°C) | 4.2 in | |
| December | 37°F (3°C) | 3.7 in |
Mount Vernon has a seasonal temperature swing of 45°F / from 32°F in January to 77°F in July. Total annual precipitation is 45.2 inches, with May being the wettest month (5.1") and September the driest (2.8").