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Somerville, OH
Full City Profile · Ohio · Butler County County
1.3
/5.0
F
Poor
321
Population
1,235/sq mi density
$111,100
Home Value
$345,197 Zillow
51°F
Avg Temperature
293 sunny days/yr
266
Violent Crime/100K
2,189 property/100K
F
Overall
1.3 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
266 violent crimes/100K
D
Education
1.5 / 5.0
6.5% bachelor's degree or higher
Somerville experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 26°F in January while summers reach 73°F in July. The area gets 293 sunny days per year. Annual precipitation totals 43.1 inches. Air quality is rated Good with a median AQI of 43.
Temperature
26°F Jan (-3°C)
73°F Jul (23°C)
| Annual Average | 51.2°F |
| 5% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 767 ft (234 m) |
| Area | 0.2 sq mi (0.6 km²) |
| Population Density | 1,235/sq mi |
| Coordinates | 39.5638°N, 84.6393°W |
| Timezone | America/New_York |
| County | Butler County County |
| Nearest Airport | Middletown Regional/Hook Field (MWO) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0475 ppm |
| SO₂ (Sulfur Dioxide) | 0.67 ppb |
| PM2.5 (Fine Particles) | 11.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.5 / 100 |
| Social Vulnerability | 22.4 / 100 |
| Community Resilience | 74.1 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 2.5 in | Coldest |
| February | 30°F (-1°C) | 2.4 in | Driest |
| March | 40°F (5°C) | 3.7 in | |
| April | 51°F (10°C) | 3.9 in | |
| May | 61°F (16°C) | 4.6 in | Wettest |
| June | 70°F (21°C) | 3.6 in | |
| July | 73°F (23°C) | 4.0 in | Warmest |
| August | 72°F (22°C) | 3.5 in | |
| September | 65°F (19°C) | 2.9 in | |
| October | 54°F (12°C) | 2.9 in | |
| November | 43°F (6°C) | 3.4 in | |
| December | 32°F (0°C) | 3.2 in |
Somerville has a seasonal temperature swing of 47°F / from 26°F in January to 73°F in July. Total annual precipitation is 40.5 inches, with May being the wettest month (4.6") and February the driest (2.4").