Carroll Valley, PA
Full City Profile · Pennsylvania · Adams County County
3.5
/5.0
B+
Good
3,962
Population
736/sq mi density
$90,505
Median Income
$46,954 per capita
$287,400
Home Value
$342,538 Zillow
53°F
Avg Temperature
22
Violent Crime/100K
547 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$90,505 median income, 1.9% unemployment
A+
Affordability
4.9 / 5.0
$287,400 home value, /mo rent
F
Safety
1.0 / 5.0
22 violent crimes/100K
B
Education
3.4 / 5.0
30.3% bachelor's degree or higher
Carroll Valley 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 46.6 inches. The area receives 27.5 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
31°F Jan (-0°C)
75°F Jul (24°C)
| Annual Average | 53.0°F |
| 2% below US avg | |
| January Average | 31°F (-0°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 778 ft (237 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 736/sq mi |
| Coordinates | 39.7502°N, 77.3869°W |
| Timezone | America/New_York |
| County | Adams County County |
| Nearest Airport | Gettysburg Regional (GTY) 9 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 | 31°F (-0°C) | 3.5 in | Coldest |
| February | 33°F (0°C) | 2.6 in | Driest |
| March | 41°F (5°C) | 4.2 in | |
| April | 52°F (11°C) | 3.9 in | |
| May | 61°F (16°C) | 4.3 in | |
| June | 70°F (21°C) | 4.3 in | |
| July | 75°F (24°C) | 4.3 in | Warmest |
| August | 73°F (23°C) | 3.5 in | |
| September | 66°F (19°C) | 5.2 in | Wettest |
| October | 55°F (13°C) | 3.8 in | |
| November | 44°F (7°C) | 3.4 in | |
| December | 36°F (2°C) | 3.8 in |
Carroll Valley has a seasonal temperature swing of 44°F / from 31°F in January to 75°F in July. Total annual precipitation is 46.7 inches, with September being the wettest month (5.2") and February the driest (2.6").