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Fairless Hills, PA
Full City Profile · Pennsylvania · Mercer County County
3.4
/5.0
B
Good
8,985
Population
4,631/sq mi density
$80,625
Median Income
$36,342 per capita
$328,000
Home Value
$414,557 Zillow
$1,240
Median Rent
36.5% income on rent
53°F
Avg Temperature
271 sunny days/yr
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$80,625 median income, 2.8% unemployment
A
Affordability
4.4 / 5.0
$328,000 home value, $1,240/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C+
Education
2.6 / 5.0
19.6% bachelor's degree or higher
Fairless Hills experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 30°F in January while summers reach 76°F in July. The area gets 271 sunny days per year. Annual precipitation totals 50.7 inches. The area receives 19.9 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
30°F Jan (-1°C)
76°F Jul (24°C)
| Annual Average | 52.9°F |
| 2% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 85 ft (26 m) |
| Area | 2.0 sq mi (5.1 km²) |
| Population Density | 4,631/sq mi |
| Coordinates | 40.1777°N, 74.8510°W |
| Timezone | America/New_York |
| County | Mercer County County |
| Nearest Airport | South Jersey Regional (LLY) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0450 ppm |
| PM2.5 (Fine Particles) | 9.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.4 / 100 |
| Social Vulnerability | 46.9 / 100 |
| Community Resilience | 70.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 55 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 52 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.6 in | Coldest |
| February | 32°F (0°C) | 2.8 in | Driest |
| March | 41°F (5°C) | 3.9 in | |
| April | 51°F (10°C) | 3.9 in | |
| May | 61°F (16°C) | 4.5 in | |
| June | 70°F (21°C) | 3.9 in | |
| July | 76°F (24°C) | 4.7 in | Warmest, Wettest |
| August | 73°F (23°C) | 4.5 in | |
| September | 66°F (19°C) | 4.1 in | |
| October | 55°F (13°C) | 3.4 in | |
| November | 45°F (7°C) | 3.8 in | |
| December | 36°F (2°C) | 3.7 in |
Fairless Hills has a seasonal temperature swing of 45°F / from 30°F in January to 76°F in July. Total annual precipitation is 46.7 inches, with July being the wettest month (4.7") and February the driest (2.8").