Chalfont, PA
Full City Profile · Pennsylvania · Bucks County County
4.7
/5.0
A+
Excellent
4,301
Population
2,655/sq mi density
$131,944
Median Income
$56,646 per capita
$435,700
Home Value
$614,673 Zillow
$1,984
Median Rent
51.0% income on rent
53°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A
Economy
4.3 / 5.0
$131,944 median income, 5.8% unemployment
A+
Affordability
4.8 / 5.0
$435,700 home value, $1,984/mo rent
A+
Education
5.0 / 5.0
61.7% bachelor's degree or higher
Chalfont experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 31°F in January while summers reach 75°F in July. Annual precipitation totals 47.7 inches. The area receives 21.7 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
31°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 289 ft (88 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 2,655/sq mi |
| Coordinates | 40.2890°N, 75.2096°W |
| Timezone | America/New_York |
| County | Bucks County County |
| Nearest Airport | Lehigh Valley International (ABE) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 82.3% |
| Unhealthy Days | 10 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0463 ppm |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 94.8 / 100 |
| Social Vulnerability | 18.6 / 100 |
| Community Resilience | 77.7 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
| Avalanche | Very 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 | - | - | 50 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 54 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 3.2 in | Coldest |
| February | 33°F (1°C) | 2.5 in | Driest |
| March | 41°F (5°C) | 3.9 in | |
| April | 52°F (11°C) | 3.9 in | |
| May | 62°F (16°C) | 4.3 in | |
| June | 70°F (21°C) | 4.2 in | |
| July | 75°F (24°C) | 5.5 in | Warmest, Wettest |
| August | 74°F (23°C) | 4.9 in | |
| September | 67°F (19°C) | 4.4 in | |
| October | 55°F (13°C) | 3.8 in | |
| November | 45°F (7°C) | 3.4 in | |
| December | 36°F (2°C) | 4.0 in |
Chalfont has a seasonal temperature swing of 44°F / from 31°F in January to 75°F in July. Total annual precipitation is 47.7 inches, with July being the wettest month (5.5") and February the driest (2.5").