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Westby, MT
Full City Profile · Montana · Sheridan County County
3.0
/5.0
B
Good
253
Population
452/sq mi density
$24,583
Median Income
$38,129 per capita
$61,900
Home Value
$176,221 Zillow
$575
Median Rent
11.3% income on rent
39°F
Avg Temperature
274 sunny days/yr
183
Violent Crime/100K
1,223 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$24,583 median income, 0.8% unemployment
A+
Affordability
5.0 / 5.0
$61,900 home value, $575/mo rent
F
Safety
1.0 / 5.0
183 violent crimes/100K
C+
Education
2.7 / 5.0
21.1% bachelor's degree or higher
Westby has a cool climate with an average annual temperature of 39°F (4°C). Winters average 9°F in January while summers reach 67°F in July. The area gets 274 sunny days per year. Annual precipitation totals 14.9 inches. Air quality is rated Good with a median AQI of 26.
Temperature
9°F Jan (-13°C)
67°F Jul (20°C)
| Annual Average | 39.1°F |
| 28% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 2,083 ft (635 m) |
| Area | 0.5 sq mi (1.4 km²) |
| Population Density | 452/sq mi |
| Coordinates | 48.8705°N, 104.0571°W |
| Timezone | America/Denver |
| County | Sheridan County County |
| Nearest Airport | Williston Basin International (XWA) 44 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 15.1 / 100 |
| Social Vulnerability | 59.2 / 100 |
| Community Resilience | 12.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 0.4 in | Coldest |
| February | 15°F (-9°C) | 0.4 in | Driest |
| March | 27°F (-3°C) | 0.6 in | |
| April | 43°F (6°C) | 1.1 in | |
| May | 55°F (13°C) | 2.1 in | |
| June | 64°F (18°C) | 2.6 in | Wettest |
| July | 67°F (20°C) | 2.3 in | |
| August | 68°F (20°C) | 1.8 in | Warmest |
| September | 56°F (14°C) | 1.4 in | |
| October | 44°F (7°C) | 0.8 in | |
| November | 26°F (-4°C) | 0.4 in | |
| December | 12°F (-11°C) | 0.5 in |
Westby has a seasonal temperature swing of 59°F / from 9°F in January to 68°F in August. Total annual precipitation is 14.2 inches, with June being the wettest month (2.6") and February the driest (0.4").