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Sumter, SC
Full City Profile · South Carolina · Sumter County County
3.1
/5.0
B
Good
43,065
Population
1,300/sq mi density
$53,071
Median Income
$28,682 per capita
$188,400
Home Value
$210,391 Zillow
$1,055
Median Rent
31.1% income on rent
62°F
Avg Temperature
308 sunny days/yr
1,057
Violent Crime/100K
4,542 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.4 / 5.0
$53,071 median income, 4.1% unemployment
A+
Affordability
4.7 / 5.0
$188,400 home value, $1,055/mo rent
F
Safety
1.0 / 5.0
1,057 violent crimes/100K (178% above avg)
B
Education
3.3 / 5.0
28.6% bachelor's degree or higher
Sumter enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 44°F in January while summers reach 80°F in July. The area gets 308 sunny days per year. Annual precipitation totals 48.8 inches. The area receives 0.3 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
44°F Jan (7°C)
80°F Jul (27°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 171 ft (52 m) |
| Area | 32.1 sq mi (83.1 km²) |
| Population Density | 1,300/sq mi |
| Coordinates | 33.9408°N, 80.3955°W |
| Timezone | America/New_York |
| County | Sumter County County |
| Nearest Airport | Hartsville Regional (HVS) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 81.7 / 100 |
| Social Vulnerability | 54.7 / 100 |
| Community Resilience | 45.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| 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 | — | — | 121 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 4.4 in | Coldest |
| February | 48°F (9°C) | 3.6 in | |
| March | 55°F (13°C) | 4.4 in | |
| April | 63°F (17°C) | 2.8 in | |
| May | 70°F (21°C) | 3.5 in | |
| June | 77°F (25°C) | 5.1 in | |
| July | 80°F (27°C) | 5.3 in | Warmest, Wettest |
| August | 79°F (26°C) | 5.0 in | |
| September | 74°F (23°C) | 3.9 in | |
| October | 63°F (17°C) | 3.0 in | |
| November | 55°F (13°C) | 2.8 in | Driest |
| December | 47°F (8°C) | 3.4 in |
Sumter has a seasonal temperature swing of 36°F / from 44°F in January to 80°F in July. Total annual precipitation is 47.0 inches, with July being the wettest month (5.3") and November the driest (2.8").