Crownsville, MD
Full City Profile · Maryland · Baltimore city County
4.4
/5.0
A
Great
1,701
Population
334/sq mi density
$146,486
Median Income
$88,008 per capita
$885,600
Home Value
$669,370 Zillow
58°F
Avg Temperature
A
Overall
4.4 / 5.0
Strong
A+
Economy
5.0 / 5.0
$146,486 median income, 1.7% unemployment
B
Affordability
3.3 / 5.0
$885,600 home value, /mo rent
A+
Education
5.0 / 5.0
53.8% bachelor's degree or higher
Crownsville enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 37°F in January while summers reach 79°F in July. Annual precipitation totals 44.0 inches. The area receives 19.3 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
37°F Jan (3°C)
79°F Jul (26°C)
| Annual Average | 57.7°F |
| 7% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 120 ft (37 m) |
| Area | 5.1 sq mi (13.2 km²) |
| Population Density | 334/sq mi |
| Coordinates | 39.0225°N, 76.5904°W |
| Timezone | America/New_York |
| County | Baltimore city County |
| Nearest Airport | Baltimore/Washington International Thurgood Marshall (BWI) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
| Good Days % | 65.6% |
| Unhealthy Days | 5 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0487 ppm |
| NO₂ (Nitrogen Dioxide) | 13.9 ppb |
| PM2.5 (Fine Particles) | 8.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.0 / 100 |
| Social Vulnerability | 74.1 / 100 |
| Community Resilience | 78.8 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 148 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 2.8 in | Coldest |
| February | 38°F (4°C) | 2.4 in | Driest |
| March | 46°F (8°C) | 3.8 in | |
| April | 55°F (13°C) | 3.4 in | |
| May | 65°F (18°C) | 3.2 in | |
| June | 75°F (24°C) | 4.0 in | |
| July | 79°F (26°C) | 4.9 in | Warmest |
| August | 77°F (25°C) | 4.3 in | |
| September | 71°F (22°C) | 5.1 in | Wettest |
| October | 60°F (15°C) | 4.0 in | |
| November | 49°F (10°C) | 3.0 in | |
| December | 41°F (5°C) | 3.0 in |
Crownsville has a seasonal temperature swing of 43°F / from 37°F in January to 79°F in July. Total annual precipitation is 44.0 inches, with September being the wettest month (5.1") and February the driest (2.4").