All Countries
South Vienna, OH
Full City Profile · Ohio · Clark County County
3.1
/5.0
B
Good
516
Population
794/sq mi density
$70,833
Median Income
$33,405 per capita
$141,400
Home Value
$295,112 Zillow
$874
Median Rent
19.0% income on rent
50°F
Avg Temperature
293 sunny days/yr
140
Violent Crime/100K
2,501 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$70,833 median income, 3.1% unemployment
A+
Affordability
5.0 / 5.0
$141,400 home value, $874/mo rent
F
Safety
1.0 / 5.0
140 violent crimes/100K
C
Education
2.3 / 5.0
15.9% bachelor's degree or higher
South Vienna experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 72°F in July. The area gets 293 sunny days per year. Annual precipitation totals 42.3 inches. Air quality is rated Good with a median AQI of 43.
Temperature
26°F Jan (-3°C)
72°F Jul (22°C)
| Annual Average | 50.4°F |
| 7% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 1,192 ft (363 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 794/sq mi |
| Coordinates | 39.9293°N, 83.6139°W |
| Timezone | America/New_York |
| County | Clark County County |
| Nearest Airport | James M Cox Dayton International (DAY) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0453 ppm |
| PM2.5 (Fine Particles) | 10.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.1 / 100 |
| Social Vulnerability | 58.1 / 100 |
| Community Resilience | 82.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 2.2 in | Coldest, Driest |
| February | 29°F (-2°C) | 2.2 in | |
| March | 39°F (4°C) | 3.2 in | |
| April | 50°F (10°C) | 3.6 in | |
| May | 60°F (16°C) | 4.3 in | Wettest |
| June | 69°F (21°C) | 3.9 in | |
| July | 72°F (22°C) | 4.2 in | Warmest |
| August | 71°F (22°C) | 3.7 in | |
| September | 65°F (18°C) | 3.1 in | |
| October | 53°F (12°C) | 2.6 in | |
| November | 42°F (6°C) | 3.2 in | |
| December | 32°F (-0°C) | 2.9 in |
South Vienna has a seasonal temperature swing of 47°F / from 26°F in January to 72°F in July. Total annual precipitation is 38.9 inches, with May being the wettest month (4.3") and January the driest (2.2").