Fairfax, SC
Full City Profile · South Carolina · Allendale County County
3.0
/5.0
B
Good
2,037
Population
615/sq mi density
$41,328
Median Income
$24,462 per capita
$54,400
Home Value
$88,746 Zillow
$702
Median Rent
22.7% income on rent
63°F
Avg Temperature
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
C
Economy
2.2 / 5.0
$41,328 median income, 9.4% unemployment
A+
Affordability
5.0 / 5.0
$54,400 home value, $702/mo rent
D
Education
1.7 / 5.0
8.5% bachelor's degree or higher
Fairfax enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 46°F in January while summers reach 81°F in July. Annual precipitation totals 48.8 inches. The area receives 0.1 inches of snow annually.
Temperature
46°F Jan (8°C)
81°F Jul (27°C)
| Annual Average | 63.3°F |
| 17% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 81°F (27°C) |
Geography
| Elevation | 135 ft (41 m) |
| Area | 3.3 sq mi (8.6 km²) |
| Population Density | 615/sq mi |
| Coordinates | 32.9594°N, 81.2362°W |
| Timezone | America/New_York |
| County | Allendale County County |
| Nearest Airport | Barnwell Regional (BNL) 22 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 35.5 / 100 |
| Social Vulnerability | 89.3 / 100 |
| Community Resilience | 6.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1886 | CHARLESTON, SC | Earthquake | - | - | 116 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 4.0 in | Coldest |
| February | 49°F (9°C) | 3.7 in | |
| March | 55°F (13°C) | 4.0 in | |
| April | 63°F (17°C) | 3.1 in | Driest |
| May | 70°F (21°C) | 3.6 in | |
| June | 77°F (25°C) | 4.8 in | |
| July | 81°F (27°C) | 5.5 in | Warmest |
| August | 79°F (26°C) | 5.6 in | Wettest |
| September | 74°F (23°C) | 4.2 in | |
| October | 65°F (18°C) | 3.4 in | |
| November | 54°F (12°C) | 3.2 in | |
| December | 48°F (9°C) | 3.9 in |
Fairfax has a seasonal temperature swing of 35°F / from 46°F in January to 81°F in July. Total annual precipitation is 48.8 inches, with August being the wettest month (5.6") and April the driest (3.1").