Karns, TN
Full City Profile · Tennessee · Loudon County County
4.5
/5.0
A+
Excellent
3,835
Population
1,283/sq mi density
$101,161
Median Income
$41,528 per capita
$284,700
Home Value
$353,969 Zillow
$1,793
Median Rent
22.1% income on rent
60°F
Avg Temperature
A+
Overall
4.5 / 5.0
Strong
A
Economy
4.0 / 5.0
$101,161 median income, 8.5% unemployment
A+
Affordability
5.0 / 5.0
$284,700 home value, $1,793/mo rent
A
Education
4.4 / 5.0
43.1% bachelor's degree or higher
Karns enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 39°F in January while summers reach 79°F in July. Annual precipitation totals 55.5 inches. The area receives 4.4 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
39°F Jan (4°C)
79°F Jul (26°C)
| Annual Average | 59.8°F |
| 11% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 982 ft (299 m) |
| Area | 3.0 sq mi (7.7 km²) |
| Population Density | 1,283/sq mi |
| Coordinates | 35.9778°N, 84.1091°W |
| Timezone | America/Chicago |
| County | Loudon County County |
| Nearest Airport | Mc Ghee Tyson (TYS) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
| Good Days % | 78.1% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0454 ppm |
| PM2.5 (Fine Particles) | 7.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 68.4 / 100 |
| Social Vulnerability | 68.1 / 100 |
| Community Resilience | 68.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 5.1 in | Coldest |
| February | 43°F (6°C) | 5.6 in | Wettest |
| March | 51°F (11°C) | 5.1 in | |
| April | 60°F (16°C) | 5.2 in | |
| May | 68°F (20°C) | 4.1 in | |
| June | 76°F (24°C) | 4.6 in | |
| July | 79°F (26°C) | 5.5 in | Warmest |
| August | 78°F (26°C) | 3.5 in | |
| September | 72°F (22°C) | 3.8 in | |
| October | 61°F (16°C) | 3.1 in | Driest |
| November | 49°F (10°C) | 4.6 in | |
| December | 42°F (6°C) | 5.4 in |
Karns has a seasonal temperature swing of 40°F / from 39°F in January to 79°F in July. Total annual precipitation is 55.5 inches, with February being the wettest month (5.6") and October the driest (3.1").