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St. Leon, IN
Full City Profile · Indiana · Dearborn County County
3.3
/5.0
B
Good
1,012
Population
148/sq mi density
$86,932
Median Income
$32,851 per capita
$273,900
Home Value
$347,074 Zillow
$867
Median Rent
26.7% income on rent
54°F
Avg Temperature
297 sunny days/yr
219
Violent Crime/100K
2,745 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$86,932 median income, 0.5% unemployment
A+
Affordability
4.9 / 5.0
$273,900 home value, $867/mo rent
F
Safety
1.0 / 5.0
219 violent crimes/100K
C+
Education
2.7 / 5.0
21.4% bachelor's degree or higher
St. Leon experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 30°F in January while summers reach 75°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 41.
Temperature
30°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 53.7°F |
| 1% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 1,016 ft (310 m) |
| Area | 6.8 sq mi (17.7 km²) |
| Population Density | 148/sq mi |
| Coordinates | 39.2995°N, 84.9665°W |
| Timezone | America/Indiana/Indianapolis |
| County | Dearborn County County |
| Nearest Airport | Cincinnati/Northern Kentucky International (CVG) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 45.2 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 48.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.8 in | Coldest |
| February | 32°F (-0°C) | 2.7 in | Driest |
| March | 42°F (5°C) | 3.9 in | |
| April | 52°F (11°C) | 4.1 in | |
| May | 62°F (16°C) | 4.7 in | Wettest |
| June | 70°F (21°C) | 4.1 in | |
| July | 75°F (24°C) | 4.1 in | Warmest |
| August | 73°F (23°C) | 3.8 in | |
| September | 66°F (19°C) | 2.8 in | |
| October | 54°F (12°C) | 3.0 in | |
| November | 44°F (6°C) | 3.6 in | |
| December | 33°F (1°C) | 3.3 in |
St. Leon has a seasonal temperature swing of 45°F / from 30°F in January to 75°F in July. Total annual precipitation is 42.8 inches, with May being the wettest month (4.7") and February the driest (2.7").