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Decatur, TN
Full City Profile · Tennessee · Meigs County County
2.2
/5.0
C
Fair
1,860
Population
489/sq mi density
$48,203
Median Income
$26,271 per capita
$218,800
Home Value
$261,385 Zillow
$821
Median Rent
24.0% income on rent
58°F
Avg Temperature
301 sunny days/yr
668
Violent Crime/100K
2,248 property/100K
C
Overall
2.2 / 5.0
Fair overall score based on economy, affordability, safety and education
D
Economy
1.7 / 5.0
$48,203 median income, 10.3% unemployment
A
Affordability
4.1 / 5.0
$218,800 home value, $821/mo rent
F
Safety
1.0 / 5.0
668 violent crimes/100K (76% above avg)
D
Education
1.8 / 5.0
10.5% bachelor's degree or higher
Decatur enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 38°F in January while summers reach 78°F in July. The area gets 301 sunny days per year. Annual precipitation totals 57.6 inches. The area receives 3.3 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
38°F Jan (3°C)
78°F Jul (26°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 38°F (3°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 898 ft (274 m) |
| Area | 3.0 sq mi (7.8 km²) |
| Population Density | 489/sq mi |
| Coordinates | 35.5291°N, 84.7933°W |
| Timezone | America/Chicago |
| County | Meigs County County |
| Nearest Airport | Mc Ghee Tyson (TYS) 49 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 12.7 / 100 |
| Social Vulnerability | 77.8 / 100 |
| Community Resilience | 35.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 5.1 in | Coldest |
| February | 41°F (5°C) | 4.7 in | |
| March | 49°F (10°C) | 6.1 in | Wettest |
| April | 57°F (14°C) | 4.5 in | |
| May | 65°F (19°C) | 5.0 in | |
| June | 73°F (23°C) | 3.9 in | |
| July | 78°F (26°C) | 5.1 in | Warmest |
| August | 76°F (25°C) | 3.9 in | |
| September | 70°F (21°C) | 4.1 in | |
| October | 59°F (15°C) | 3.5 in | Driest |
| November | 49°F (9°C) | 4.8 in | |
| December | 41°F (5°C) | 5.6 in |
Decatur has a seasonal temperature swing of 40°F / from 38°F in January to 78°F in July. Total annual precipitation is 56.2 inches, with March being the wettest month (6.1") and October the driest (3.5").