Walnut Grove CDP (Sumner County), TN
Full City Profile · Tennessee · Sumner County County
4.1
/5.0
A
Great
576
Population
120/sq mi density
$123,063
Median Income
$52,466 per capita
$476,400
Home Value
$385,098 Zillow
58°F
Avg Temperature
A
Overall
4.1 / 5.0
Strong
A+
Economy
5.0 / 5.0
$123,063 median income, 0.0% unemployment
A+
Affordability
4.5 / 5.0
$476,400 home value, /mo rent
C+
Education
2.7 / 5.0
21.1% bachelor's degree or higher
Walnut Grove CDP (Sumner County) enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 37°F in January while summers reach 79°F in July. Annual precipitation totals 54.4 inches. The area receives 2.0 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
37°F Jan (3°C)
79°F Jul (26°C)
| Annual Average | 58.2°F |
| 8% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 885 ft (270 m) |
| Area | 4.8 sq mi (12.5 km²) |
| Population Density | 120/sq mi |
| Coordinates | 36.4890°N, 86.6057°W |
| Timezone | America/Chicago |
| County | Sumner County County |
| Nearest Airport | Nashville International (BNA) 26 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
| Good Days % | 62.6% |
| Unhealthy Days | 4 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0487 ppm |
| PM2.5 (Fine Particles) | 8.2 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.7 / 100 |
| Social Vulnerability | 14.8 / 100 |
| Community Resilience | 55.7 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively 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 | 37°F (3°C) | 4.3 in | Coldest |
| February | 40°F (4°C) | 4.5 in | |
| March | 48°F (9°C) | 4.9 in | |
| April | 58°F (15°C) | 5.3 in | |
| May | 67°F (19°C) | 5.7 in | Wettest |
| June | 74°F (24°C) | 4.3 in | |
| July | 79°F (26°C) | 4.8 in | Warmest |
| August | 77°F (25°C) | 4.0 in | |
| September | 71°F (21°C) | 3.9 in | |
| October | 60°F (15°C) | 3.8 in | Driest |
| November | 48°F (9°C) | 4.1 in | |
| December | 40°F (5°C) | 4.8 in |
Walnut Grove CDP (Sumner County) has a seasonal temperature swing of 42°F / from 37°F in January to 79°F in July. Total annual precipitation is 54.4 inches, with May being the wettest month (5.7") and October the driest (3.8").