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Millsboro, PA
Full City Profile · Pennsylvania · Greene County County
3.0
/5.0
B
Good
313
Population
396/sq mi density
51°F
Avg Temperature
293 sunny days/yr
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B
Education
3.0 / 5.0
25.3% bachelor's degree or higher
Millsboro experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 72°F in July. The area gets 293 sunny days per year. Annual precipitation totals 43.1 inches. The area receives 30.1 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
29°F Jan (-2°C)
72°F Jul (22°C)
| Annual Average | 51.0°F |
| 6% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 1,031 ft (314 m) |
| Area | 0.8 sq mi (2.0 km²) |
| Population Density | 396/sq mi |
| Coordinates | 39.9901°N, 80.0022°W |
| Timezone | America/New_York |
| County | Greene County County |
| Nearest Airport | Pittsburgh International (PIT) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0468 ppm |
| PM2.5 (Fine Particles) | 8.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 55.1 / 100 |
| Social Vulnerability | 49.3 / 100 |
| Community Resilience | 55.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.6 in | Coldest |
| February | 31°F (-0°C) | 2.4 in | Driest |
| March | 40°F (5°C) | 3.6 in | |
| April | 50°F (10°C) | 3.5 in | |
| May | 60°F (15°C) | 4.1 in | |
| June | 68°F (20°C) | 3.9 in | |
| July | 72°F (22°C) | 4.2 in | Warmest, Wettest |
| August | 71°F (21°C) | 3.8 in | |
| September | 64°F (18°C) | 3.2 in | |
| October | 53°F (11°C) | 2.6 in | |
| November | 43°F (6°C) | 3.2 in | |
| December | 33°F (1°C) | 3.0 in |
Millsboro has a seasonal temperature swing of 43°F / from 29°F in January to 72°F in July. Total annual precipitation is 39.8 inches, with July being the wettest month (4.2") and February the driest (2.4").