Silesia, MT

Full City Profile · Montana · Yellowstone County County

2.6 /5.0
C+ Fair
10 Population 5/sq mi density
44°F Avg Temperature
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Education
2.6 / 5.0
20.0% bachelor's degree or higher
Silesia has a cool climate with an average annual temperature of 44°F (7°C). Winters average 23°F in January while summers reach 68°F in July. Annual precipitation totals 14.5 inches. The area receives 50.9 inches of snow annually.

Temperature

23°F Jan (-5°C) 68°F Jul (20°C)
Annual Average43.7°F
19% below US avg
January Average23°F (-5°C)
July Average68°F (20°C)

Geography

Elevation3,395 ft (1,035 m)
Area1.8 sq mi (4.7 km²)
Population Density5/sq mi
Coordinates45.5490°N, 108.8376°W
TimezoneAmerica/Denver
CountyYellowstone County County
Nearest AirportBillings Logan International (BIL)
23 miles away

Precipitation & Snow

Annual Rainfall 14.5"
62% below US avg
Snowfall 50.9"
Wettest Month (May) 2.67"
Driest Month (Jan) 0.53"

Air Quality

Air Pollutants (EPA 2023)

SO₂ (Sulfur Dioxide)2.34 ppb
PM2.5 (Fine Particles)6.7 μg/m³

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score83.6 / 100
Social Vulnerability20.3 / 100
Community Resilience82.3 / 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)

Earthquake History

45 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M3.2 on Jul 21, 2023.

May 11, 2022 36 km S of Silver Gate, Montana M4.2 133 km
Mar 25, 2008 35 km S of Silver Gate, Montana M4.2 133 km
Jan 30, 2023 9 km NNW of Livingston, Montana M3.8 139 km
Jan 9, 2003 23 km E of Wilsall, Montana M3.7 129 km
Jul 6, 2021 27 km SSE of Melstone, Montana M3.6 124 km
Mar 4, 2019 35 km SSW of Silver Gate, Montana M3.3 136 km
Jan 9, 2009 42 km SSW of Silver Gate, Montana M3.3 147 km
Aug 16, 1992 47 km S of Silver Gate, Montana M3.2 141 km
Jul 21, 2023 Eastern Montana M3.2 6 km
Jul 3, 1994 25 km ESE of Mammoth, Wyoming M3.2 144 km
Nov 9, 2009 40 km SW of Silver Gate, Montana M3.1 147 km
Aug 8, 2003 36 km S of Silver Gate, Montana M2.9 133 km
Nov 6, 1998 36 km S of Silver Gate, Montana M2.9 132 km
May 3, 2013 35 km S of Silver Gate, Montana M2.9 135 km
Feb 28, 2007 44 km SSW of Silver Gate, Montana M2.9 150 km
Mar 30, 2017 38 km S of Silver Gate, Montana M2.9 133 km
Jan 27, 2009 41 km SSW of Silver Gate, Montana M2.8 147 km
Mar 23, 2023 8 km S of Shell, Wyoming M2.8 148 km
Jul 22, 2016 21 km W of Cody, Wyoming M2.8 117 km
Jan 6, 2019 34 km SW of Silver Gate, Montana M2.8 141 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

44 tornadoes (EF0+) within 100 km since 1950. Strongest: EF3. Total: 3 injuries.

Date Rating Distance Fatalities
Jun 16, 1965 EF3 38 km 0
Jun 20, 2010 EF2 40 km 0
Jun 16, 2010 EF2 43 km 0
Jul 11, 1978 EF2 98 km 0
Jun 26, 1964 EF2 89 km 0
Jul 2, 1958 EF2 39 km 0
May 21, 2016 EF1 97 km 0
Jun 22, 1996 EF1 99 km 0
Jul 9, 1991 EF1 98 km 0
Jun 21, 1991 EF1 34 km 0
May 18, 1991 EF1 89 km 0
May 24, 1990 EF1 56 km 0
May 24, 1990 EF1 51 km 0
Jul 24, 1981 EF1 88 km 0
Jun 18, 1978 EF1 92 km 0
Jun 26, 1976 EF1 87 km 0
Aug 22, 1965 EF1 95 km 0
Aug 12, 1958 EF1 17 km 0
Jul 6, 1955 EF1 56 km 0
May 24, 2014 EF0 76 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Nearby Volcanoes

1 volcano within 200 km. Closest: Yellowstone (190 km).

Name Type Elevation Last Eruption Distance
Yellowstone Caldera(s) 2,805 m (9,203 ft) -1350 190 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: DERBY (200,993 ac, 2006).

Year Name Acres Distance
2006 DERBY 200,993 76 km
1984 HAWK CREEK 157,778 90 km
2008 DUNN MTN. ASSIST 105,494 90 km
2006 BUNDY RAILROAD 91,575 96 km
2003 HOBBLE 38,365 71 km
2021 ROBERTSON DRAW 31,132 60 km
2020 BOBCAT 31,020 92 km
2012 DAHL 21,448 84 km
1996 SHEPARD MTN 17,379 70 km
1994 BLACK BUTTE 10,231 87 km
2008 CASCADE 10,017 66 km
2010 STUMP GULCH 8,873 42 km
1996 COLFAX 8,429 81 km
2021 TROUT CREEK 7,804 64 km
2011 HOLE IN THE WALL 6,559 72 km
2006 BIRTHDAY2 6,553 77 km
2017 MICROWAVE 5,958 81 km
2003 DEEP LAKE 5,466 82 km
1996 LASTSTAND 5,385 84 km
2002 COW CREEK 5,162 20 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 0.5 in Coldest, Driest
February 25°F (-4°C) 0.6 in
March 34°F (1°C) 0.8 in
April 42°F (5°C) 1.9 in
May 51°F (11°C) 2.7 in Wettest
June 60°F (16°C) 2.1 in
July 68°F (20°C) 0.9 in Warmest
August 66°F (19°C) 0.9 in
September 57°F (14°C) 1.3 in
October 44°F (7°C) 1.6 in
November 32°F (0°C) 0.7 in
December 23°F (-5°C) 0.6 in

Silesia has a seasonal temperature swing of 45°F / from 23°F in January to 68°F in July. Total annual precipitation is 14.5 inches, with May being the wettest month (2.7") and January the driest (0.5").

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