Fallon, MT

Full City Profile · Montana · Prairie County County

1.2 /5.0
F Poor
305 Population 60/sq mi density
$217,700 Home Value $151,767 Zillow
$873 Median Rent 51.0% income on rent
45°F Avg Temperature
F
Overall
1.2 / 5.0
Below average overall score based on economy, affordability, safety and education
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. Annual precipitation totals 13.4 inches. The area receives 11.8 inches of snow annually.

Temperature

17°F Jan (-8°C) 73°F Jul (23°C)
Annual Average45.3°F
16% below US avg
January Average17°F (-8°C)
July Average73°F (23°C)

Geography

Elevation2,203 ft (671 m)
Area5.3 sq mi (13.7 km²)
Population Density60/sq mi
Coordinates46.8371°N, 105.1275°W
TimezoneAmerica/Denver
CountyPrairie County County
Nearest AirportSidney-Richland Regional (SDY)
74 miles away

Precipitation & Snow

Annual Rainfall 13.4"
65% below US avg
Snowfall 11.8"
Wettest Month (May) 2.51"
Driest Month (Jan) 0.29"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score4.2 / 100
Social Vulnerability74.1 / 100
Community Resilience19.5 / 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)

Earthquake History

3 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.5. Most recent: M2.6 on May 6, 2014.

Nov 3, 1999 8 km NNW of Broadus, Montana M3.5 150 km
May 6, 2014 12 km NNW of Knife River, Montana M2.6 95 km
Jul 29, 2013 18 km SE of Ekalaka, Montana M2.6 132 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

62 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 1 fatality, 10 injuries.

Date Rating Distance Fatalities
Jun 29, 1961 EF4 44 km 0
Jun 11, 2016 EF3 89 km 0
May 24, 1953 EF3 74 km 0
Jul 19, 1952 EF3 83 km 0
Jul 19, 1952 EF3 68 km 1
Jun 10, 1952 EF3 89 km 0
Jul 25, 2001 EF2 95 km 0
Jul 25, 2001 EF2 72 km 0
Jun 20, 1999 EF2 80 km 0
Jul 11, 1995 EF2 74 km 0
Jun 27, 1975 EF2 53 km 0
Jun 25, 1975 EF2 74 km 0
Jul 11, 1965 EF2 36 km 0
Jul 18, 1962 EF2 30 km 0
Aug 26, 1954 EF2 90 km 0
Jun 23, 1953 EF2 44 km 0
Jul 8, 2013 EF1 82 km 0
May 20, 2011 EF1 23 km 0
Jul 25, 2001 EF1 85 km 0
Jul 22, 1979 EF1 84 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: OKERMAN (15,478 ac, 2007).

Year Name Acres Distance
2007 OKERMAN 15,478 79 km
1990 KNOWLTON C 13,226 52 km
1998 BRADSHAW 10,591 42 km
1991 MEDICINE ROCK 8,565 97 km
2017 CROW ROCK 8,298 70 km
2008 KNOWLTON COMPLEX (DRGA) 7,218 57 km
2007 WOLF CREEK 7,029 87 km
2000 TOOKE 6,128 97 km
1996 ROBINSON 5,901 88 km
2015 HERCULES 3,482 93 km
2003 3 MILE 3,394 55 km
2007 ROCK SPRINGS 3,094 71 km
1996 FT. KEOGH 3,018 81 km
2021 GREAT DIVIDE - DAWSON 3,003 55 km
1999 CEDARCRKN 2,964 41 km
1988 DEER CRK 2,711 92 km
2021 DOROTHY DRAW 2,565 47 km
2006 WOODY 1,770 66 km
2021 BRACKETT 1,756 38 km
2007 UNNAMED 1,748 87 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 17°F (-8°C) 0.3 in Coldest, Driest
February 22°F (-5°C) 0.3 in
March 34°F (1°C) 0.4 in
April 45°F (7°C) 1.4 in
May 55°F (13°C) 2.5 in Wettest
June 65°F (19°C) 2.4 in
July 73°F (23°C) 1.9 in Warmest
August 72°F (22°C) 1.3 in
September 61°F (16°C) 1.2 in
October 46°F (8°C) 0.9 in
November 32°F (-0°C) 0.4 in
December 21°F (-6°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 13.4 inches, with May being the wettest month (2.5") and January the driest (0.3").

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