McKnightstown, PA
Full City Profile · Pennsylvania · Adams County County
4.3
/5.0
A
Great
728
Population
502/sq mi density
$111,923
Median Income
$29,585 per capita
$185,900
Home Value
$342,538 Zillow
51°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A+
Economy
5.0 / 5.0
$111,923 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$185,900 home value, /mo rent
C+
Education
2.8 / 5.0
22.9% bachelor's degree or higher
McKnightstown experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 74°F in July. Annual precipitation totals 46.4 inches. The area receives 27.0 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
29°F Jan (-2°C)
74°F Jul (23°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 635 ft (194 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 502/sq mi |
| Coordinates | 39.8735°N, 77.3302°W |
| Timezone | America/New_York |
| County | Adams County County |
| Nearest Airport | Gettysburg Regional (GTY) 4 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 | 29°F (-2°C) | 3.5 in | Coldest |
| February | 31°F (-1°C) | 2.7 in | Driest |
| March | 38°F (4°C) | 4.0 in | |
| April | 50°F (10°C) | 4.1 in | |
| May | 60°F (16°C) | 4.4 in | |
| June | 69°F (21°C) | 3.9 in | |
| July | 74°F (23°C) | 4.1 in | Warmest |
| August | 72°F (22°C) | 3.9 in | |
| September | 65°F (18°C) | 4.9 in | Wettest |
| October | 53°F (12°C) | 4.0 in | |
| November | 42°F (6°C) | 3.3 in | |
| December | 34°F (1°C) | 3.7 in |
McKnightstown has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 46.4 inches, with September being the wettest month (4.9") and February the driest (2.7").