Fairfield, PA
Full City Profile · Pennsylvania · Adams County County
3.5
/5.0
B+
Good
638
Population
952/sq mi density
$59,063
Median Income
$29,699 per capita
$219,000
Home Value
$350,458 Zillow
$1,111
Median Rent
31.8% income on rent
51°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.4 / 5.0
$59,063 median income, 2.9% unemployment
A+
Affordability
4.6 / 5.0
$219,000 home value, $1,111/mo rent
C+
Education
2.6 / 5.0
20.2% bachelor's degree or higher
Fairfield experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 74°F in July. Annual precipitation totals 46.4 inches. The area receives 33.0 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
29°F Jan (-2°C)
74°F Jul (23°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 606 ft (185 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 952/sq mi |
| Coordinates | 39.7890°N, 77.3698°W |
| Timezone | America/New_York |
| County | Adams County County |
| Nearest Airport | Gettysburg Regional (GTY) 6 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 63.1% |
| Unhealthy Days | 3 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0480 ppm |
| NO₂ (Nitrogen Dioxide) | 3.5 ppb |
| SO₂ (Sulfur Dioxide) | 0.48 ppb |
| CO (Carbon Monoxide) | 0.17 ppm |
| PM2.5 (Fine Particles) | 10.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 67.5 / 100 |
| Social Vulnerability | 36.2 / 100 |
| Community Resilience | 66.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| 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 | 29°F (-2°C) | 3.5 in | Coldest |
| February | 31°F (-1°C) | 2.7 in | Driest |
| March | 38°F (4°C) | 4.0 in | |
| April | 50°F (10°C) | 4.1 in | |
| May | 60°F (16°C) | 4.4 in | |
| June | 69°F (21°C) | 3.9 in | |
| July | 74°F (23°C) | 4.1 in | Warmest |
| August | 72°F (22°C) | 3.9 in | |
| September | 65°F (18°C) | 4.9 in | Wettest |
| October | 53°F (12°C) | 4.0 in | |
| November | 42°F (6°C) | 3.3 in | |
| December | 34°F (1°C) | 3.7 in |
Fairfield has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 46.4 inches, with September being the wettest month (4.9") and February the driest (2.7").