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Custer, MT
Full City Profile · Montana · Treasure County County
3.7
/5.0
B+
Good
155
Population
484/sq mi density
$70,000
Median Income
$39,444 per capita
$121,700
Home Value
$379,675 Zillow
$431
Median Rent
13.1% income on rent
47°F
Avg Temperature
273 sunny days/yr
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$70,000 median income, 1.5% unemployment
A+
Affordability
5.0 / 5.0
$121,700 home value, $431/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C+
Education
2.9 / 5.0
23.2% bachelor's degree or higher
Custer experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 24°F in January while summers reach 73°F in July. The area gets 273 sunny days per year. Annual precipitation totals 14.9 inches. The area receives 37.1 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
24°F Jan (-5°C)
73°F Jul (23°C)
| Annual Average | 47.2°F |
| 13% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 2,742 ft (836 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 484/sq mi |
| Coordinates | 46.1292°N, 107.5555°W |
| Timezone | America/Denver |
| County | Treasure County County |
| Nearest Airport | Billings Logan International (BIL) 52 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 90.9% |
| Unhealthy Days | 2 |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 0.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 4.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 0.6 in | Coldest |
| February | 26°F (-3°C) | 0.5 in | Driest |
| March | 36°F (2°C) | 0.8 in | |
| April | 46°F (8°C) | 1.6 in | |
| May | 56°F (13°C) | 2.6 in | Wettest |
| June | 65°F (18°C) | 2.1 in | |
| July | 73°F (23°C) | 1.2 in | Warmest |
| August | 71°F (22°C) | 1.1 in | |
| September | 60°F (15°C) | 1.5 in | |
| October | 48°F (9°C) | 1.1 in | |
| November | 34°F (1°C) | 0.6 in | |
| December | 24°F (-4°C) | 0.6 in |
Custer has a seasonal temperature swing of 49°F / from 24°F in January to 73°F in July. Total annual precipitation is 14.5 inches, with May being the wettest month (2.6") and February the driest (0.5").