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Mount Holly Springs, PA
Full City Profile · Pennsylvania · Cumberland County County
2.9
/5.0
C+
Fair
2,333
Population
1,715/sq mi density
$68,388
Median Income
$30,681 per capita
$161,400
Home Value
$275,513 Zillow
$968
Median Rent
26.8% income on rent
52°F
Avg Temperature
275 sunny days/yr
49
Violent Crime/100K
888 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$68,388 median income, 4.6% unemployment
A+
Affordability
5.0 / 5.0
$161,400 home value, $968/mo rent
F
Safety
1.0 / 5.0
49 violent crimes/100K
D
Education
2.0 / 5.0
11.9% bachelor's degree or higher
Mount Holly Springs 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 | 566 ft (173 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 1,715/sq mi |
| Coordinates | 40.1093°N, 77.1829°W |
| Timezone | America/New_York |
| County | Cumberland County County |
| Nearest Airport | Gettysburg Regional (GTY) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 9.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.2 / 100 |
| Social Vulnerability | 23.6 / 100 |
| Community Resilience | 96.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively 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) | 3.0 in | Coldest |
| February | 31°F (-1°C) | 2.8 in | Driest |
| March | 40°F (4°C) | 3.4 in | |
| April | 50°F (10°C) | 3.6 in | |
| May | 60°F (16°C) | 4.2 in | |
| June | 68°F (20°C) | 4.2 in | Wettest |
| July | 74°F (23°C) | 3.6 in | Warmest |
| August | 71°F (22°C) | 3.4 in | |
| September | 65°F (18°C) | 4.1 in | |
| October | 53°F (12°C) | 3.4 in | |
| November | 43°F (6°C) | 3.5 in | |
| December | 33°F (1°C) | 3.2 in |
Mount Holly Springs has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 42.3 inches, with June being the wettest month (4.2") and February the driest (2.8").