Dahlgren, VA
Full City Profile · Virginia · King George County County
4.4
/5.0
A
Great
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
58°F
Avg Temperature
A
Overall
4.4 / 5.0
Strong
A+
Economy
4.7 / 5.0
$106,071 median income, 4.0% unemployment
A+
Affordability
4.6 / 5.0
$383,400 home value, $1,291/mo rent
B+
Education
3.8 / 5.0
35.1% bachelor's degree or higher
Dahlgren 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 41.0 inches. The area receives 12.4 inches of snow annually.
Temperature
37°F Jan (3°C)
79°F Jul (26°C)
| Annual Average | 58.1°F |
| 8% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 79°F (26°C) |
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
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 | 37°F (3°C) | 2.7 in | Coldest |
| February | 39°F (4°C) | 2.4 in | Driest |
| March | 47°F (8°C) | 3.6 in | |
| April | 58°F (14°C) | 3.2 in | |
| May | 66°F (19°C) | 3.6 in | |
| June | 75°F (24°C) | 3.5 in | |
| July | 79°F (26°C) | 4.6 in | Warmest, Wettest |
| August | 78°F (25°C) | 4.2 in | |
| September | 71°F (22°C) | 3.4 in | |
| October | 59°F (15°C) | 3.3 in | |
| November | 49°F (9°C) | 3.1 in | |
| December | 40°F (5°C) | 3.3 in |
Dahlgren has a seasonal temperature swing of 43°F / from 37°F in January to 79°F in July. Total annual precipitation is 41.0 inches, with July being the wettest month (4.6") and February the driest (2.4").