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Fairfield, OH
Full City Profile · Ohio · Butler County County
3.4
/5.0
B
Good
44,597
Population
2,141/sq mi density
$70,166
Median Income
$38,256 per capita
$218,100
Home Value
$274,103 Zillow
$1,145
Median Rent
28.4% income on rent
54°F
Avg Temperature
293 sunny days/yr
197
Violent Crime/100K
2,062 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$70,166 median income, 3.6% unemployment
A+
Affordability
4.9 / 5.0
$218,100 home value, $1,145/mo rent
F
Safety
1.0 / 5.0
197 violent crimes/100K
B
Education
3.5 / 5.0
30.8% bachelor's degree or higher
Fairfield experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 31°F in January while summers reach 76°F in July. The area gets 293 sunny days per year. Annual precipitation totals 41.4 inches. Air quality is rated Good with a median AQI of 43.
Temperature
31°F Jan (-1°C)
76°F Jul (24°C)
| Annual Average | 53.8°F |
| 0% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 627 ft (191 m) |
| Area | 21.1 sq mi (54.5 km²) |
| Population Density | 2,141/sq mi |
| Coordinates | 39.3314°N, 84.5427°W |
| Timezone | America/New_York |
| County | Butler County County |
| Nearest Airport | Butler County Regional/Hogan Field (HAO) 2 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 | 31°F (-1°C) | 2.7 in | Coldest |
| February | 32°F (0°C) | 2.6 in | Driest |
| March | 43°F (6°C) | 3.9 in | |
| April | 52°F (11°C) | 4.0 in | |
| May | 63°F (17°C) | 4.6 in | Wettest |
| June | 71°F (22°C) | 3.8 in | |
| July | 76°F (24°C) | 4.0 in | Warmest |
| August | 74°F (23°C) | 3.7 in | |
| September | 67°F (19°C) | 3.0 in | |
| October | 55°F (13°C) | 3.0 in | |
| November | 44°F (7°C) | 3.5 in | |
| December | 34°F (1°C) | 3.2 in |
Fairfield has a seasonal temperature swing of 45°F / from 31°F in January to 76°F in July. Total annual precipitation is 42.0 inches, with May being the wettest month (4.6") and February the driest (2.6").