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Union, SC
Full City Profile · South Carolina · Union County County
2.7
/5.0
C+
Fair
8,047
Population
986/sq mi density
$34,112
Median Income
$26,533 per capita
$103,400
Home Value
$132,648 Zillow
$789
Median Rent
31.0% income on rent
60°F
Avg Temperature
310 sunny days/yr
988
Violent Crime/100K
6,940 property/100K
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$34,112 median income, 5.7% unemployment
A+
Affordability
5.0 / 5.0
$103,400 home value, $789/mo rent
F
Safety
1.0 / 5.0
988 violent crimes/100K (160% above avg)
C
Education
2.2 / 5.0
14.8% bachelor's degree or higher
Union enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 41°F in January while summers reach 79°F in July. The area gets 310 sunny days per year. Annual precipitation totals 45.3 inches. The area receives 1.9 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
41°F Jan (5°C)
79°F Jul (26°C)
| Annual Average | 60.4°F |
| 12% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 310 days/yr |
Geography
| Elevation | 630 ft (192 m) |
| Area | 8.0 sq mi (20.7 km²) |
| Population Density | 986/sq mi |
| Coordinates | 34.7235°N, 81.6248°W |
| Timezone | America/New_York |
| County | Union County County |
| Nearest Airport | Greenville Spartanburg International (GSP) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 58.2 / 100 |
| Social Vulnerability | 95.6 / 100 |
| Community Resilience | 40.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 4.5 in | Coldest |
| February | 45°F (7°C) | 4.1 in | |
| March | 52°F (11°C) | 5.0 in | Wettest |
| April | 60°F (16°C) | 3.2 in | Driest |
| May | 68°F (20°C) | 3.7 in | |
| June | 75°F (24°C) | 4.1 in | |
| July | 79°F (26°C) | 4.1 in | Warmest |
| August | 78°F (25°C) | 4.3 in | |
| September | 72°F (22°C) | 4.1 in | |
| October | 61°F (16°C) | 3.8 in | |
| November | 51°F (11°C) | 3.5 in | |
| December | 44°F (6°C) | 3.7 in |
Union has a seasonal temperature swing of 38°F / from 41°F in January to 79°F in July. Total annual precipitation is 47.9 inches, with March being the wettest month (5.0") and April the driest (3.2").