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Duncannon, PA
Full City Profile · Pennsylvania · Perry County County
2.9
/5.0
C+
Fair
1,306
Population
3,185/sq mi density
$51,902
Median Income
$31,739 per capita
$150,600
Home Value
$279,180 Zillow
$783
Median Rent
24.2% income on rent
52°F
Avg Temperature
275 sunny days/yr
80
Violent Crime/100K
1,474 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$51,902 median income, 3.6% unemployment
A+
Affordability
5.0 / 5.0
$150,600 home value, $783/mo rent
F
Safety
1.0 / 5.0
80 violent crimes/100K
D
Education
2.0 / 5.0
12.3% bachelor's degree or higher
Duncannon experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 48.0 inches. The area receives 27.7 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
29°F Jan (-2°C)
74°F Jul (23°C)
| Annual Average | 51.9°F |
| 4% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 365 ft (111 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 3,185/sq mi |
| Coordinates | 40.3952°N, 77.0277°W |
| Timezone | America/New_York |
| County | Perry County County |
| Nearest Airport | Harrisburg International (MDT) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 53.1 / 100 |
| Social Vulnerability | 33.6 / 100 |
| Community Resilience | 67.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.8 in | Coldest, Driest |
| February | 31°F (-1°C) | 2.8 in | |
| March | 39°F (4°C) | 3.3 in | |
| April | 50°F (10°C) | 3.4 in | |
| May | 60°F (16°C) | 4.2 in | Wettest |
| June | 68°F (20°C) | 4.1 in | |
| July | 74°F (23°C) | 3.7 in | Warmest |
| August | 72°F (22°C) | 3.4 in | |
| September | 65°F (18°C) | 3.9 in | |
| October | 53°F (12°C) | 3.3 in | |
| November | 43°F (6°C) | 3.5 in | |
| December | 33°F (1°C) | 3.2 in |
Duncannon has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 41.6 inches, with May being the wettest month (4.2") and January the driest (2.8").