Acton, MT
Full City Profile · Montana · Yellowstone County County
2.7
/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
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$36,563 median income, unemployment
C+
Affordability
2.5 / 5.0
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. Annual precipitation totals 14.3 inches. The area receives 57.4 inches of snow annually.
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) |
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
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) | 0.6 in | Coldest, Driest |
| February | 29°F (-1°C) | 0.6 in | |
| March | 38°F (3°C) | 0.9 in | |
| April | 46°F (8°C) | 1.7 in | |
| May | 55°F (13°C) | 2.4 in | Wettest |
| June | 65°F (18°C) | 2.2 in | |
| July | 73°F (23°C) | 1.2 in | Warmest |
| August | 72°F (22°C) | 0.9 in | |
| September | 61°F (16°C) | 1.4 in | |
| October | 48°F (9°C) | 1.4 in | |
| November | 36°F (2°C) | 0.6 in | |
| December | 28°F (-2°C) | 0.6 in |
Acton has a seasonal temperature swing of 46°F / from 27°F in January to 73°F in July. Total annual precipitation is 14.3 inches, with May being the wettest month (2.4") and January the driest (0.6").