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Dahlgren, VA
Full City Profile · Virginia · King George County County
3.6
/5.0
B+
Good
3,417
Population
1,275/sq mi density
$106,071
Median Income
$47,557 per capita
$383,400
Home Value
$317,559 Zillow
$1,291
Median Rent
19.2% income on rent
57°F
Avg Temperature
293 sunny days/yr
196
Violent Crime/100K
2,071 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$106,071 median income, 2.9% unemployment
A+
Affordability
4.6 / 5.0
$383,400 home value, $1,291/mo rent
F
Safety
1.0 / 5.0
196 violent crimes/100K
B+
Education
3.8 / 5.0
35.1% bachelor's degree or higher
Dahlgren enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 36°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 44.8 inches. The area receives 11.5 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
36°F Jan (2°C)
77°F Jul (25°C)
| Annual Average | 56.6°F |
| 5% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 3 ft (1 m) |
| Area | 2.8 sq mi (7.2 km²) |
| Population Density | 1,275/sq mi |
| Coordinates | 38.3420°N, 77.0643°W |
| Timezone | America/New_York |
| County | King George County County |
| Nearest Airport | St Mary's County Regional (LTW) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 12.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 72.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Coastal Flood | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 3.1 in | Coldest |
| February | 38°F (3°C) | 2.8 in | Driest |
| March | 46°F (8°C) | 3.4 in | |
| April | 55°F (13°C) | 3.2 in | |
| May | 64°F (18°C) | 3.4 in | |
| June | 73°F (23°C) | 3.4 in | |
| July | 77°F (25°C) | 3.6 in | Warmest |
| August | 76°F (24°C) | 4.3 in | Wettest |
| September | 69°F (21°C) | 3.3 in | |
| October | 58°F (14°C) | 3.1 in | |
| November | 48°F (9°C) | 3.2 in | |
| December | 40°F (4°C) | 3.3 in |
Dahlgren has a seasonal temperature swing of 41°F / from 36°F in January to 77°F in July. Total annual precipitation is 40.1 inches, with August being the wettest month (4.3") and February the driest (2.8").