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St. Pierre, MT

Full City Profile · Montana · Hill County County

2.3 /5.0
C Fair
467 Population 58/sq mi density
$34,141 Median Income $10,317 per capita
$388 Median Rent 13.8% income on rent
44°F Avg Temperature 274 sunny days/yr
538 Violent Crime/100K 3,605 property/100K
C
Overall
2.3 / 5.0
Fair overall score based on economy, affordability, safety and education
F
Economy
1.3 / 5.0
$34,141 median income, 14.2% unemployment
A+
Affordability
5.0 / 5.0
F
Safety
1.0 / 5.0
538 violent crimes/100K (42% above avg)
C
Education
2.0 / 5.0
13.1% bachelor's degree or higher
St. Pierre has a cool climate with an average annual temperature of 44°F (7°C). Winters average 18°F in January while summers reach 70°F in July. The area gets 274 sunny days per year. Annual precipitation totals 13.1 inches. The area receives 34.6 inches of snow annually. Air quality is rated Good with a median AQI of 26.

Temperature

18°F Jan (-8°C) 70°F Jul (21°C)
Annual Average43.5°F
19% below US avg
January Average18°F (-8°C)
July Average70°F (21°C)
Sunny Days274 days/yr

Geography

Elevation4,108 ft (1,252 m)
Area8.1 sq mi (20.9 km²)
Population Density58/sq mi
Coordinates48.2439°N, 109.8161°W
TimezoneAmerica/Denver
CountyHill County County
Nearest AirportGreat Falls International (GTF)
89 miles away

Precipitation & Snow

Annual Rainfall 13.1"
65% below US avg
Snowfall 34.6"
Wettest Month (May) 3.07"
Driest Month (Feb) 0.59"

Air Quality

AQI Median26.0
RatingGood

Air Pollutants (EPA 2023)

PM2.5 (Fine Particles)7.9 μg/m³

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score50.5 / 100
Social Vulnerability67.1 / 100
Community Resilience38.1 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Low
Hail Very Low
Strong Wind Very Low
Heat Wave Very Low
Winter Weather Relatively High
Lightning Relatively Moderate
Ice Storm Very Low
Drought Relatively Low
Cold Wave Relatively High
Landslide Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M2.5 on Jul 15, 2015.

Aug 16, 1994 27 km W of Chester, Montana M3.9 115 km
Dec 5, 1991 15 km WSW of Hays, Montana M3.0 76 km
Oct 16, 2011 Eastern Montana M2.7 141 km
Feb 25, 2013 28 km WSW of Chester, Montana M2.5 111 km
Jul 15, 2015 48 km E of Zortman, Montana M2.5 150 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

30 tornadoes (EF0+) within 100 km since 1950. Strongest: EF3. Total: 7 injuries.

Date Rating Distance Fatalities
Jul 5, 1988 EF3 33 km 0
Jul 5, 1988 EF3 42 km 0
Jul 5, 1988 EF3 58 km 0
Jun 25, 1996 EF2 94 km 0
Jul 8, 2002 EF1 57 km 0
Jun 19, 1998 EF1 91 km 0
Jun 16, 1995 EF1 89 km 0
Jun 1, 1980 EF1 99 km 0
May 25, 1980 EF1 55 km 0
May 25, 1980 EF1 94 km 0
May 24, 1977 EF1 79 km 0
Jul 10, 1965 EF1 88 km 0
Jul 1, 1962 EF1 29 km 0
Aug 26, 2022 EF0 64 km 0
Jun 13, 2014 EF0 48 km 0
Jun 5, 2012 EF0 23 km 0
Jun 17, 2005 EF0 67 km 0
Aug 5, 2002 EF0 84 km 0
Jul 20, 1999 EF0 96 km 0
Jul 7, 1999 EF0 85 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: BLAINE C (138,192 ac, 1991).

Year Name Acres Distance
1991 BLAINE C 138,192 48 km
2012 WELDER 32,985 92 km
2021 TAYLOR 21,704 84 km
2017 EAST FORK 21,165 18 km
2021 PINE GROVE 16,158 94 km
2009 MEISSNER 12,318 95 km
1984 CENTENNIAL 11,775 4 km
2006 MAGGIE 8,187 70 km
2022 EAGLE CREEK 6,359 18 km
1988 MONUMENT 5,514 97 km
1988 LOSTCANYON 4,532 5 km
2008 CHOUTEAU CO COMPLEX 4,365 56 km
2003 LAKE17 4,054 75 km
2006 HOWARD 3,884 90 km
2014 MIDDLE BLACK 3,854 84 km
2012 OUTHOUSE 3,179 44 km
1990 ADAMS 3,072 91 km
1990 QUISNO 3,018 85 km
2007 CHOUTEAU CO ASST 2,646 74 km
2014 2 RAINTRAP PASTURE PRESCRIBED FIRE 2,311 68 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 18°F (-8°C) 0.8 in Coldest
February 22°F (-6°C) 0.6 in Driest
March 29°F (-2°C) 0.9 in
April 40°F (4°C) 1.3 in
May 49°F (10°C) 3.1 in Wettest
June 58°F (14°C) 2.9 in
July 70°F (21°C) 1.8 in Warmest
August 64°F (18°C) 1.9 in
September 54°F (12°C) 1.8 in
October 43°F (6°C) 0.9 in
November 29°F (-2°C) 0.6 in
December 20°F (-6°C) 0.8 in

St. Pierre has a seasonal temperature swing of 52°F / from 18°F in January to 70°F in July. Total annual precipitation is 17.3 inches, with May being the wettest month (3.1") and February the driest (0.6").

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