Union, KY
Full City Profile · Kentucky · Boone County County
5.0
/5.0
A+
Excellent
7,494
Population
1,946/sq mi density
$139,013
Median Income
$54,974 per capita
$382,900
Home Value
$463,506 Zillow
$1,721
Median Rent
24.4% income on rent
55°F
Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$139,013 median income, 0.8% unemployment
A+
Affordability
5.0 / 5.0
$382,900 home value, $1,721/mo rent
A+
Education
5.0 / 5.0
59.4% bachelor's degree or higher
Union experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 31°F in January while summers reach 76°F in July. Annual precipitation totals 45.3 inches. The area receives 23.3 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
31°F Jan (-0°C)
76°F Jul (24°C)
| Annual Average | 54.7°F |
| 1% above US avg | |
| January Average | 31°F (-0°C) |
| July Average | 76°F (24°C) |
Geography
| Elevation | 905 ft (276 m) |
| Area | 3.3 sq mi (8.6 km²) |
| Population Density | 1,946/sq mi |
| Coordinates | 38.9469°N, 84.6737°W |
| Timezone | America/New_York |
| County | Boone County County |
| Nearest Airport | Cincinnati/Northern Kentucky International (CVG) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
| Good Days % | 79.6% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0487 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 74.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 71.9 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 3.3 in | Coldest |
| February | 35°F (2°C) | 3.2 in | |
| March | 44°F (6°C) | 4.2 in | |
| April | 55°F (13°C) | 4.5 in | |
| May | 64°F (18°C) | 4.7 in | |
| June | 72°F (22°C) | 4.8 in | Wettest |
| July | 76°F (24°C) | 3.8 in | Warmest |
| August | 75°F (24°C) | 3.4 in | |
| September | 68°F (20°C) | 3.1 in | Driest |
| October | 56°F (13°C) | 3.4 in | |
| November | 44°F (7°C) | 3.2 in | |
| December | 36°F (2°C) | 3.7 in |
Union has a seasonal temperature swing of 45°F / from 31°F in January to 76°F in July. Total annual precipitation is 45.3 inches, with June being the wettest month (4.8") and September the driest (3.1").