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Union, KY
Full City Profile · Kentucky · Boone County County
4.0
/5.0
A
Great
7,494
Population
1,946/sq mi density
$139,013
Median Income
$54,974 per capita
$382,900
Home Value
$454,255 Zillow
$1,721
Median Rent
24.4% income on rent
53°F
Avg Temperature
293 sunny days/yr
195
Violent Crime/100K
4,659 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$139,013 median income, 0.6% unemployment
A+
Affordability
5.0 / 5.0
$382,900 home value, $1,721/mo rent
F
Safety
1.0 / 5.0
195 violent crimes/100K
A+
Education
5.0 / 5.0
59.4% bachelor's degree or higher
Union experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 293 sunny days per year. Annual precipitation totals 47.7 inches. Air quality is rated Good with a median AQI of 41.
Temperature
29°F Jan (-2°C)
74°F Jul (24°C)
| Annual Average | 53.0°F |
| 2% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (24°C) |
| Sunny Days | 293 days/yr |
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 | 41.0 |
| Rating | Good |
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 | 29°F (-2°C) | 2.8 in | Coldest |
| February | 33°F (1°C) | 2.8 in | Driest |
| March | 43°F (6°C) | 4.1 in | |
| April | 53°F (12°C) | 4.1 in | |
| May | 63°F (17°C) | 4.7 in | Wettest |
| June | 71°F (22°C) | 4.2 in | |
| July | 74°F (24°C) | 3.9 in | Warmest |
| August | 74°F (23°C) | 3.8 in | |
| September | 67°F (19°C) | 3.0 in | |
| October | 55°F (13°C) | 3.0 in | |
| November | 45°F (7°C) | 3.5 in | |
| December | 35°F (2°C) | 3.4 in |
Union has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 43.1 inches, with May being the wettest month (4.7") and February the driest (2.8").