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Gillisonville, SC
Full City Profile · South Carolina · Jasper County County
1.2
/5.0
F
Poor
317
Population
269/sq mi density
67°F
Avg Temperature
308 sunny days/yr
170
Violent Crime/100K
4,094 property/100K
F
Overall
1.2 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
170 violent crimes/100K
F
Education
1.5 / 5.0
6.0% bachelor's degree or higher
Gillisonville enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 51°F in January while summers reach 82°F in July. The area gets 308 sunny days per year. Annual precipitation totals 45.3 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
51°F Jan (10°C)
82°F Jul (28°C)
| Annual Average | 66.9°F |
| 24% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 71 ft (22 m) |
| Area | 1.2 sq mi (3.1 km²) |
| Population Density | 269/sq mi |
| Coordinates | 32.6116°N, 81.0002°W |
| Timezone | America/New_York |
| County | Jasper County County |
| Nearest Airport | Lowcountry Regional (RBW) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.6 / 100 |
| Social Vulnerability | 76.8 / 100 |
| Community Resilience | 21.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively 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 | — | — | 99 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 4.1 in | Coldest |
| February | 51°F (10°C) | 3.5 in | |
| March | 58°F (14°C) | 4.2 in | |
| April | 64°F (18°C) | 3.1 in | |
| May | 72°F (22°C) | 3.9 in | |
| June | 78°F (25°C) | 5.6 in | |
| July | 82°F (28°C) | 5.7 in | Warmest |
| August | 80°F (27°C) | 6.5 in | Wettest |
| September | 75°F (24°C) | 4.6 in | |
| October | 66°F (19°C) | 2.7 in | |
| November | 57°F (14°C) | 2.4 in | Driest |
| December | 51°F (10°C) | 3.3 in |
Gillisonville has a seasonal temperature swing of 32°F / from 51°F in January to 82°F in July. Total annual precipitation is 49.6 inches, with August being the wettest month (6.5") and November the driest (2.4").