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Fallon, MT
Full City Profile · Montana · Prairie County County
1.1
/5.0
F
Poor
305
Population
60/sq mi density
$217,700
Home Value
$142,056 Zillow
$873
Median Rent
51.0% income on rent
45°F
Avg Temperature
273 sunny days/yr
219
Violent Crime/100K
3,085 property/100K
F
Overall
1.1 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
219 violent crimes/100K
F
Education
1.2 / 5.0
3.1% bachelor's degree or higher
Fallon has a cool climate with an average annual temperature of 45°F (7°C). Winters average 17°F in January while summers reach 73°F in July. The area gets 273 sunny days per year. Annual precipitation totals 13.4 inches. The area receives 11.8 inches of snow annually. Air quality is rated Good with a median AQI of 26.
Temperature
17°F Jan (-8°C)
73°F Jul (23°C)
| Annual Average | 45.3°F |
| 16% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 2,203 ft (671 m) |
| Area | 5.3 sq mi (13.7 km²) |
| Population Density | 60/sq mi |
| Coordinates | 46.8371°N, 105.1275°W |
| Timezone | America/Denver |
| County | Prairie County County |
| Nearest Airport | Sidney-Richland Regional (SDY) 74 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 4.2 / 100 |
| Social Vulnerability | 74.1 / 100 |
| Community Resilience | 19.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 0.4 in | Coldest |
| February | 23°F (-5°C) | 0.3 in | Driest |
| March | 33°F (0°C) | 0.5 in | |
| April | 45°F (7°C) | 1.2 in | |
| May | 56°F (14°C) | 2.1 in | |
| June | 66°F (19°C) | 2.4 in | Wettest |
| July | 73°F (23°C) | 1.7 in | Warmest |
| August | 71°F (22°C) | 1.3 in | |
| September | 59°F (15°C) | 1.3 in | |
| October | 47°F (8°C) | 0.9 in | |
| November | 30°F (-1°C) | 0.4 in | |
| December | 19°F (-7°C) | 0.3 in |
Fallon has a seasonal temperature swing of 56°F / from 17°F in January to 73°F in July. Total annual precipitation is 12.6 inches, with June being the wettest month (2.4") and February the driest (0.3").