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Letts, IN
Full City Profile · Indiana · Decatur County County
2.7
/5.0
C+
Fair
53
Population
353/sq mi density
$61,071
Median Income
$42,942 per capita
55°F
Avg Temperature
293 sunny days/yr
263
Violent Crime/100K
644 property/100K
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$61,071 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
263 violent crimes/100K
B
Education
3.1 / 5.0
26.4% bachelor's degree or higher
Letts experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 32°F in January while summers reach 75°F in July. The area gets 293 sunny days per year. Annual precipitation totals 49.3 inches. The area receives 17.2 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
32°F Jan (-0°C)
75°F Jul (24°C)
| Annual Average | 54.8°F |
| 1% above US avg | |
| January Average | 32°F (-0°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 293 days/yr |
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
| AQI Median | 41.0 |
| Rating | Good |
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 | 32°F (-0°C) | 2.5 in | Driest |
| February | 31°F (-1°C) | 2.5 in | Coldest |
| March | 41°F (5°C) | 3.9 in | |
| April | 52°F (11°C) | 4.2 in | |
| May | 62°F (17°C) | 4.8 in | Wettest |
| June | 71°F (21°C) | 3.7 in | |
| July | 75°F (24°C) | 4.3 in | Warmest |
| August | 73°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 3.0 in | |
| October | 55°F (13°C) | 3.0 in | |
| November | 43°F (6°C) | 3.7 in | |
| December | 33°F (1°C) | 3.3 in |
Letts has a seasonal temperature swing of 44°F / from 31°F in February to 75°F in July. Total annual precipitation is 42.6 inches, with May being the wettest month (4.8") and January the driest (2.5").