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Darby, MT
Full City Profile · Montana · Ravalli County County
2.4
/5.0
C
Fair
575
Population
858/sq mi density
$40,943
Median Income
$41,808 per capita
$263,200
Home Value
$550,418 Zillow
$883
Median Rent
29.9% income on rent
45°F
Avg Temperature
273 sunny days/yr
500
Violent Crime/100K
3,171 property/100K
C
Overall
2.4 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$40,943 median income, 1.9% unemployment
B
Affordability
3.0 / 5.0
$263,200 home value, $883/mo rent
F
Safety
1.0 / 5.0
500 violent crimes/100K (31% above avg)
D
Education
1.9 / 5.0
11.7% bachelor's degree or higher
Darby has a cool climate with an average annual temperature of 45°F (7°C). Winters average 27°F in January while summers reach 66°F in July. The area gets 273 sunny days per year. Annual precipitation totals 15.1 inches. Air quality is rated Good with a median AQI of 26.
Temperature
27°F Jan (-3°C)
66°F Jul (19°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 3,890 ft (1,186 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 858/sq mi |
| Coordinates | 46.0245°N, 114.1797°W |
| Timezone | America/Denver |
| County | Ravalli County County |
| Nearest Airport | Missoula Montana (MSO) 62 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 5.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.5 / 100 |
| Social Vulnerability | 45.2 / 100 |
| Community Resilience | 27.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 1.4 in | |
| February | 28°F (-3°C) | 0.9 in | Driest |
| March | 33°F (0°C) | 1.0 in | |
| April | 39°F (4°C) | 1.1 in | |
| May | 47°F (8°C) | 2.0 in | Wettest |
| June | 55°F (13°C) | 1.9 in | |
| July | 66°F (19°C) | 1.0 in | Warmest |
| August | 61°F (16°C) | 1.3 in | |
| September | 52°F (11°C) | 1.3 in | |
| October | 42°F (6°C) | 1.0 in | |
| November | 30°F (-1°C) | 1.2 in | |
| December | 23°F (-5°C) | 1.3 in | Coldest |
Darby has a seasonal temperature swing of 43°F / from 23°F in December to 66°F in July. Total annual precipitation is 15.4 inches, with May being the wettest month (2.0") and February the driest (0.9").