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Acton, MT
Full City Profile · Montana · Yellowstone County County
2.1
/5.0
C
Fair
56
Population
233/sq mi density
$36,563
Median Income
$16,036 per capita
$1,177
Median Rent
36.0% income on rent
48°F
Avg Temperature
311 sunny days/yr
378
Violent Crime/100K
4,476 property/100K
C
Overall
2.1 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.5 / 5.0
$36,563 median income, 20.0% unemployment
C+
Affordability
2.5 / 5.0
F
Safety
1.0 / 5.0
378 violent crimes/100K
C
Education
2.3 / 5.0
16.7% bachelor's degree or higher
Acton experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 27°F in January while summers reach 73°F in July. The area gets 311 sunny days per year. Annual precipitation totals 14.3 inches. The area receives 57.4 inches of snow annually. Air quality is rated Good with a median AQI of 26.
Temperature
27°F Jan (-3°C)
73°F Jul (23°C)
| Annual Average | 48.2°F |
| 11% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 3,804 ft (1,159 m) |
| Area | 0.2 sq mi (0.6 km²) |
| Population Density | 233/sq mi |
| Coordinates | 45.9289°N, 108.6787°W |
| Timezone | America/Denver |
| County | Yellowstone County County |
| Nearest Airport | Billings Logan International (BIL) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| SO₂ (Sulfur Dioxide) | 2.34 ppb |
| PM2.5 (Fine Particles) | 6.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 83.6 / 100 |
| Social Vulnerability | 20.3 / 100 |
| Community Resilience | 82.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 0.7 in | |
| February | 29°F (-2°C) | 0.5 in | Driest |
| March | 35°F (2°C) | 0.9 in | |
| April | 44°F (7°C) | 1.6 in | |
| May | 54°F (12°C) | 2.7 in | Wettest |
| June | 63°F (17°C) | 2.1 in | |
| July | 73°F (23°C) | 1.2 in | Warmest |
| August | 69°F (21°C) | 1.1 in | |
| September | 58°F (15°C) | 1.4 in | |
| October | 47°F (8°C) | 1.1 in | |
| November | 34°F (1°C) | 0.7 in | |
| December | 25°F (-4°C) | 0.6 in | Coldest |
Acton has a seasonal temperature swing of 48°F / from 25°F in December to 73°F in July. Total annual precipitation is 14.6 inches, with May being the wettest month (2.7") and February the driest (0.5").