Duncannon, PA
Full City Profile · Pennsylvania · Perry County County
3.5
/5.0
B+
Good
1,306
Population
3,185/sq mi density
$51,902
Median Income
$31,739 per capita
$150,600
Home Value
$295,152 Zillow
$783
Median Rent
24.2% income on rent
55°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$51,902 median income, 5.5% unemployment
A+
Affordability
5.0 / 5.0
$150,600 home value, $783/mo rent
D
Education
2.0 / 5.0
12.3% bachelor's degree or higher
Duncannon experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 78°F in July. Annual precipitation totals 41.0 inches. The area receives 23.9 inches of snow annually.
Temperature
33°F Jan (0°C)
78°F Jul (25°C)
| Annual Average | 55.2°F |
| 2% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 78°F (25°C) |
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
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 | 33°F (0°C) | 2.6 in | Coldest |
| February | 35°F (2°C) | 2.4 in | Driest |
| March | 43°F (6°C) | 3.4 in | |
| April | 54°F (12°C) | 3.7 in | |
| May | 64°F (18°C) | 3.5 in | |
| June | 73°F (23°C) | 3.7 in | |
| July | 78°F (25°C) | 4.3 in | Warmest, Wettest |
| August | 75°F (24°C) | 3.7 in | |
| September | 69°F (20°C) | 4.1 in | |
| October | 57°F (14°C) | 3.7 in | |
| November | 46°F (8°C) | 2.8 in | |
| December | 37°F (3°C) | 3.2 in |
Duncannon has a seasonal temperature swing of 45°F / from 33°F in January to 78°F in July. Total annual precipitation is 41.0 inches, with July being the wettest month (4.3") and February the driest (2.4").