Fair Oaks, VA
Full City Profile · Virginia · Fairfax city County
4.5
/5.0
A+
Excellent
35,472
Population
7,109/sq mi density
$119,387
Median Income
$66,370 per capita
$580,500
Home Value
$780,777 Zillow
$2,242
Median Rent
29.2% income on rent
56°F
Avg Temperature
A+
Overall
4.5 / 5.0
Strong
A+
Economy
4.5 / 5.0
$119,387 median income, 5.4% unemployment
B+
Affordability
3.9 / 5.0
$580,500 home value, $2,242/mo rent
A+
Education
5.0 / 5.0
69.5% bachelor's degree or higher
Fair Oaks enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 34°F in January while summers reach 77°F in July. Annual precipitation totals 43.2 inches. The area receives 21.0 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
34°F Jan (1°C)
77°F Jul (25°C)
| Annual Average | 55.7°F |
| 3% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 404 ft (123 m) |
| Area | 5.1 sq mi (13.1 km²) |
| Population Density | 7,109/sq mi |
| Coordinates | 38.8651°N, 77.3574°W |
| Timezone | America/New_York |
| County | Fairfax city County |
| Nearest Airport | Washington Dulles International (IAD) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
| Good Days % | 71.9% |
| Unhealthy Days | 3 |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 5.3 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 75.8 / 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 | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 2.9 in | Coldest |
| February | 36°F (2°C) | 2.6 in | Driest |
| March | 44°F (7°C) | 3.5 in | |
| April | 55°F (13°C) | 3.5 in | |
| May | 64°F (18°C) | 4.7 in | Wettest |
| June | 73°F (23°C) | 4.3 in | |
| July | 77°F (25°C) | 4.2 in | Warmest |
| August | 76°F (24°C) | 3.5 in | |
| September | 69°F (20°C) | 3.9 in | |
| October | 57°F (14°C) | 3.7 in | |
| November | 46°F (8°C) | 3.1 in | |
| December | 38°F (3°C) | 3.3 in |
Fair Oaks has a seasonal temperature swing of 43°F / from 34°F in January to 77°F in July. Total annual precipitation is 43.2 inches, with May being the wettest month (4.7") and February the driest (2.6").