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Summertown, TN
Full City Profile · Tennessee · Lewis County County
3.2
/5.0
B
Good
793
Population
395/sq mi density
$82,695
Median Income
$37,480 per capita
$196,300
Home Value
$296,665 Zillow
$876
Median Rent
10.8% income on rent
59°F
Avg Temperature
318 sunny days/yr
649
Violent Crime/100K
2,814 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$82,695 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$196,300 home value, $876/mo rent
F
Safety
1.0 / 5.0
649 violent crimes/100K (71% above avg)
C
Education
2.1 / 5.0
13.7% bachelor's degree or higher
Summertown enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 38°F in January while summers reach 78°F in July. The area gets 318 sunny days per year. Air quality is rated Good with a median AQI of 40.
Temperature
38°F Jan (4°C)
78°F Jul (25°C)
| Annual Average | 58.8°F |
| 9% above US avg | |
| January Average | 38°F (4°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 318 days/yr |
Geography
| Elevation | 1,012 ft (308 m) |
| Area | 2.0 sq mi (5.2 km²) |
| Population Density | 395/sq mi |
| Coordinates | 35.4344°N, 87.3085°W |
| Timezone | America/Chicago |
| County | Lewis County County |
| Nearest Airport | Maury County Regional (MRC) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 13.9 / 100 |
| Social Vulnerability | 44.6 / 100 |
| Community Resilience | 12.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (4°C) | 4.6 in | Coldest |
| February | 41°F (5°C) | 4.6 in | |
| March | 49°F (10°C) | 6.2 in | Wettest |
| April | 57°F (14°C) | 5.0 in | |
| May | 65°F (18°C) | 5.6 in | |
| June | 73°F (23°C) | 3.8 in | |
| July | 78°F (25°C) | 4.8 in | Warmest |
| August | 76°F (24°C) | 3.6 in | Driest |
| September | 70°F (21°C) | 3.9 in | |
| October | 59°F (15°C) | 3.6 in | |
| November | 49°F (9°C) | 5.1 in | |
| December | 41°F (5°C) | 5.5 in |
Summertown has a seasonal temperature swing of 39°F / from 38°F in January to 78°F in July. Total annual precipitation is 56.1 inches, with March being the wettest month (6.2") and August the driest (3.6").