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Decatur, IN
Full City Profile · Indiana · Adams County County
3.0
/5.0
B
Good
9,769
Population
1,601/sq mi density
$58,867
Median Income
$29,760 per capita
$132,900
Home Value
$225,265 Zillow
$804
Median Rent
25.4% income on rent
51°F
Avg Temperature
275 sunny days/yr
53
Violent Crime/100K
2,028 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$58,867 median income, 1.2% unemployment
A+
Affordability
5.0 / 5.0
$132,900 home value, $804/mo rent
F
Safety
1.0 / 5.0
53 violent crimes/100K
C
Education
2.0 / 5.0
12.7% bachelor's degree or higher
Decatur experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 26°F in January while summers reach 73°F in July. The area gets 275 sunny days per year. Annual precipitation totals 40.6 inches. The area receives 28.1 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
26°F Jan (-4°C)
73°F Jul (23°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 801 ft (244 m) |
| Area | 5.8 sq mi (15.0 km²) |
| Population Density | 1,601/sq mi |
| Coordinates | 40.8289°N, 84.9278°W |
| Timezone | America/Indiana/Indianapolis |
| County | Adams County County |
| Nearest Airport | Fort Wayne International (FWA) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 52.1 / 100 |
| Social Vulnerability | 85.2 / 100 |
| Community Resilience | 45.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| 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 Low |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 2.0 in | Coldest |
| February | 27°F (-3°C) | 1.9 in | Driest |
| March | 38°F (3°C) | 2.8 in | |
| April | 49°F (9°C) | 3.5 in | |
| May | 60°F (16°C) | 3.7 in | |
| June | 70°F (21°C) | 4.0 in | Wettest |
| July | 73°F (23°C) | 3.8 in | Warmest |
| August | 71°F (22°C) | 3.4 in | |
| September | 64°F (18°C) | 3.0 in | |
| October | 53°F (11°C) | 2.5 in | |
| November | 41°F (5°C) | 3.0 in | |
| December | 30°F (-1°C) | 2.7 in |
Decatur has a seasonal temperature swing of 48°F / from 26°F in January to 73°F in July. Total annual precipitation is 36.2 inches, with June being the wettest month (4.0") and February the driest (1.9").