Mount Summit, IN
Full City Profile · Indiana · Delaware County County
2.5
/5.0
C+
Fair
742
Population
3,533/sq mi density
$211,000
Home Value
$176,358 Zillow
$906
Median Rent
25.0% income on rent
50°F
Avg Temperature
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Education
2.5 / 5.0
18.5% bachelor's degree or higher
Mount Summit experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 72°F in July. Annual precipitation totals 44.3 inches. The area receives 24.8 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
26°F Jan (-4°C)
72°F Jul (22°C)
| Annual Average | 50.4°F |
| 7% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,105 ft (337 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 3,533/sq mi |
| Coordinates | 40.0037°N, 85.3862°W |
| Timezone | America/Indiana/Indianapolis |
| County | Delaware County County |
| Nearest Airport | Delaware County Regional (MIE) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 65.6% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0469 ppm |
| PM2.5 (Fine Particles) | 8.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 76.3 / 100 |
| Social Vulnerability | 49.3 / 100 |
| Community Resilience | 82.4 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| 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 | 26°F (-4°C) | 3.0 in | Coldest |
| February | 29°F (-2°C) | 2.5 in | Driest |
| March | 38°F (4°C) | 3.4 in | |
| April | 50°F (10°C) | 4.4 in | |
| May | 61°F (16°C) | 4.9 in | |
| June | 69°F (21°C) | 5.3 in | Wettest |
| July | 72°F (22°C) | 4.7 in | Warmest |
| August | 71°F (21°C) | 3.4 in | |
| September | 65°F (18°C) | 3.1 in | |
| October | 53°F (12°C) | 3.2 in | |
| November | 41°F (5°C) | 3.5 in | |
| December | 31°F (-1°C) | 3.0 in |
Mount Summit has a seasonal temperature swing of 47°F / from 26°F in January to 72°F in July. Total annual precipitation is 44.4 inches, with June being the wettest month (5.3") and February the driest (2.5").