Mountain Home AFB, ID
Full City Profile · Idaho · Elmore County County
3.7
/5.0
B+
Good
3,198
Population
321/sq mi density
$72,411
Median Income
$26,517 per capita
$1,821
Median Rent
30.3% income on rent
52°F
Avg Temperature
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$72,411 median income, 6.6% unemployment
B+
Affordability
3.6 / 5.0
B+
Education
3.8 / 5.0
34.8% bachelor's degree or higher
Mountain Home AFB experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°F in January while summers reach 77°F in July. Annual precipitation totals 7.4 inches.
Temperature
32°F Jan (-0°C)
77°F Jul (25°C)
| Annual Average | 52.3°F |
| 3% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 2,990 ft (911 m) |
| Area | 10.0 sq mi (25.8 km²) |
| Population Density | 321/sq mi |
| Coordinates | 43.0492°N, 115.8659°W |
| Timezone | America/Boise |
| County | Elmore County County |
| Nearest Airport | Boise Air Trml/Gowen Field (BOI) 40 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 52.0 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 8.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively High |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Black Butte Crater Lava Field (124 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Black Butte Crater Lava Field | Shield | 1,478 m (4,849 ft) | -8400 | 124 km |
| Jordan Craters | Volcanic field | 1,473 m (4,833 ft) | -1250 | 130 km |
| Craters of the Moon | Pyroclastic cone(s) | 2,005 m (6,578 ft) | -130 | 196 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 1.0 in | |
| February | 36°F (2°C) | 0.5 in | |
| March | 43°F (6°C) | 0.7 in | |
| April | 49°F (10°C) | 0.7 in | |
| May | 59°F (15°C) | 1.2 in | Wettest |
| June | 68°F (20°C) | 0.6 in | |
| July | 77°F (25°C) | 0.1 in | Warmest |
| August | 75°F (24°C) | 0.1 in | Driest |
| September | 65°F (18°C) | 0.3 in | |
| October | 52°F (11°C) | 0.6 in | |
| November | 39°F (4°C) | 0.6 in | |
| December | 31°F (-0°C) | 1.0 in | Coldest |
Mountain Home AFB has a seasonal temperature swing of 46°F / from 31°F in December to 77°F in July. Total annual precipitation is 7.4 inches, with May being the wettest month (1.2") and August the driest (0.1").