Harlem, MT

Full City Profile · Montana · Blaine County County

4.1 /5.0
A Great
879 Population 2,093/sq mi density
$74,545 Median Income $32,102 per capita
$89,700 Home Value $171,979 Zillow
$770 Median Rent 19.0% income on rent
44°F Avg Temperature
A
Overall
4.1 / 5.0
Strong
B
Economy
3.4 / 5.0
$74,545 median income, 9.1% unemployment
A+
Affordability
5.0 / 5.0
$89,700 home value, $770/mo rent
B+
Education
3.8 / 5.0
35.2% bachelor's degree or higher
Harlem has a cool climate with an average annual temperature of 44°F (7°C). Winters average 17°F in January while summers reach 69°F in July. Annual precipitation totals 12.5 inches. The area receives 10.1 inches of snow annually.

Temperature

17°F Jan (-9°C) 69°F Jul (21°C)
Annual Average43.6°F
19% below US avg
January Average17°F (-9°C)
July Average69°F (21°C)

Geography

Elevation2,365 ft (721 m)
Area0.4 sq mi (1.1 km²)
Population Density2,093/sq mi
Coordinates48.5319°N, 108.7847°W
TimezoneAmerica/Denver
CountyBlaine County County
Nearest AirportGreat Falls International (GTF)
140 miles away

Precipitation & Snow

Annual Rainfall 12.5"
67% below US avg
Snowfall 10.1"
Wettest Month (Jun) 2.90"
Driest Month (Feb) 0.36"

Air Quality

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score45.9 / 100
Social Vulnerability95.7 / 100
Community Resilience13.4 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Very Low
Wildfire Relatively Low
Flood Relatively Low
Hail Very Low
Strong Wind Very Low
Heat Wave Very Low
Winter Weather Relatively Moderate
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

4 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.0. Most recent: M2.7 on Jul 10, 2021.

Dec 5, 1991 15 km WSW of Hays, Montana M3.0 65 km
Oct 16, 2011 Eastern Montana M2.7 128 km
Jul 10, 2021 24 km SSE of Malta, Montana M2.7 85 km
Jul 15, 2015 48 km E of Zortman, Montana M2.5 99 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

18 tornadoes (EF0+) within 100 km since 1950. Strongest: EF1.

Date Rating Distance Fatalities
Aug 10, 2007 EF1 91 km 0
Jul 8, 2002 EF1 33 km 0
Jul 4, 1991 EF1 80 km 0
Jul 4, 1991 EF1 93 km 0
Jul 1, 1962 EF1 75 km 0
Aug 26, 2022 EF0 28 km 0
Jun 27, 2019 EF0 79 km 0
Jul 31, 2014 EF0 31 km 0
Jun 13, 2014 EF0 35 km 0
Jun 5, 2012 EF0 94 km 0
Jun 20, 2005 EF0 27 km 0
Aug 5, 2002 EF0 91 km 0
Jun 18, 1999 EF0 33 km 0
Aug 16, 1993 EF0 84 km 0
Jul 20, 1993 EF0 71 km 0
Jun 6, 1986 EF0 82 km 0
Jun 30, 1979 EF0 62 km 0
Jun 28, 1971 EF0 39 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 35 km
2012 WELDER 32,985 32 km
1990 VETERANS 23,660 55 km
2017 EAST FORK 21,165 67 km
2021 PINE GROVE 16,158 62 km
1984 CENTENNIAL 11,775 80 km
2017 JULY 11,409 73 km
2012 ESTER LAKE 10,898 73 km
2006 MAGGIE 8,187 26 km
2017 LOWER BLACK COULEE 6,803 81 km
2022 EAGLE CREEK 6,359 76 km
2007 BLACK COULEE 5,613 80 km
1988 MONUMENT 5,514 66 km
1988 LOSTCANYON 4,532 83 km
2003 LAKE17 4,054 46 km
2008 KATHRYN 3,971 49 km
2006 HOWARD 3,884 27 km
2014 MIDDLE BLACK 3,854 63 km
2012 OUTHOUSE 3,179 55 km
1990 ADAMS 3,072 45 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 17°F (-9°C) 0.5 in Coldest
February 21°F (-6°C) 0.4 in Driest
March 33°F (0°C) 0.5 in
April 44°F (7°C) 1.0 in
May 54°F (12°C) 1.9 in
June 63°F (17°C) 2.9 in Wettest
July 69°F (21°C) 1.4 in Warmest
August 68°F (20°C) 1.0 in
September 58°F (14°C) 1.1 in
October 45°F (7°C) 0.7 in
November 31°F (-0°C) 0.6 in
December 20°F (-7°C) 0.5 in

Harlem has a seasonal temperature swing of 53°F / from 17°F in January to 69°F in July. Total annual precipitation is 12.5 inches, with June being the wettest month (2.9") and February the driest (0.4").

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