Letts, IN
Full City Profile · Indiana · Decatur County County
3.5
/5.0
B+
Good
53
Population
353/sq mi density
$61,071
Median Income
$42,942 per capita
54°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$61,071 median income, 0.0% unemployment
B
Education
3.1 / 5.0
26.4% bachelor's degree or higher
Letts experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 29°F in January while summers reach 75°F in July. Annual precipitation totals 47.0 inches. The area receives 13.3 inches of snow annually.
Temperature
29°F Jan (-2°C)
75°F Jul (24°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 888 ft (271 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 353/sq mi |
| Coordinates | 39.2340°N, 85.5685°W |
| Timezone | America/Indiana/Indianapolis |
| County | Decatur County County |
| Nearest Airport | Cincinnati/Northern Kentucky International (CVG) 50 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 23.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 78.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively 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 | 29°F (-2°C) | 3.4 in | Coldest |
| February | 32°F (0°C) | 2.8 in | Driest |
| March | 42°F (5°C) | 3.8 in | |
| April | 54°F (12°C) | 4.9 in | |
| May | 64°F (18°C) | 5.1 in | |
| June | 72°F (22°C) | 5.4 in | Wettest |
| July | 75°F (24°C) | 4.0 in | Warmest |
| August | 74°F (23°C) | 4.0 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 56°F (13°C) | 3.4 in | |
| November | 43°F (6°C) | 3.6 in | |
| December | 34°F (1°C) | 3.5 in |
Letts has a seasonal temperature swing of 47°F / from 29°F in January to 75°F in July. Total annual precipitation is 47.0 inches, with June being the wettest month (5.4") and February the driest (2.8").