Brockton, MT

Full City Profile · Montana · Roosevelt County County

1.1 /5.0
F Poor
497 Population 502/sq mi density
$69,000 Home Value $172,004 Zillow
41°F Avg Temperature
F
Overall
1.1 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Education
1.1 / 5.0
1.2% bachelor's degree or higher
Brockton has a cool climate with an average annual temperature of 41°F (5°C). Winters average 12°F in January while summers reach 68°F in July. Annual precipitation totals 14.2 inches. The area receives 28.2 inches of snow annually.

Temperature

12°F Jan (-11°C) 68°F Jul (20°C)
Annual Average40.5°F
25% below US avg
January Average12°F (-11°C)
July Average68°F (20°C)

Geography

Elevation1,967 ft (600 m)
Area0.2 sq mi (0.4 km²)
Population Density502/sq mi
Coordinates48.1559°N, 104.9030°W
TimezoneAmerica/Denver
CountyRoosevelt County County
Nearest AirportSidney-Richland Regional (SDY)
45 miles away

Precipitation & Snow

Annual Rainfall 14.2"
63% below US avg
Snowfall 28.2"
Wettest Month (Jun) 2.94"
Driest Month (Feb) 0.30"

Air Quality

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score54.5 / 100
Social Vulnerability94.5 / 100
Community Resilience1.6 / 100

Hazard Breakdown

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

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.8. Most recent: M2.6 on May 6, 2014.

Feb 25, 2014 23 km N of Brockton, Montana M3.8 23 km
Jul 29, 1998 16 km WNW of Froid, Montana M3.8 28 km
Nov 11, 1998 10 km SW of Grenora, North Dakota M3.5 78 km
Sep 28, 2012 22 km ESE of Williston, North Dakota M3.3 116 km
May 6, 2014 12 km NNW of Knife River, Montana M2.6 76 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

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

Date Rating Distance Fatalities
Jul 26, 2010 EF3 57 km 2
Jul 15, 2013 EF2 57 km 0
Jun 27, 1982 EF2 78 km 0
Jun 25, 1975 EF2 58 km 0
Jun 25, 1975 EF2 85 km 0
Jun 11, 1972 EF2 49 km 0
Jul 2, 1971 EF2 47 km 0
Sep 21, 1969 EF2 28 km 0
Aug 26, 1954 EF2 83 km 0
Jul 9, 2018 EF1 74 km 0
Jun 30, 2015 EF1 96 km 0
Jun 16, 2010 EF1 90 km 0
Jul 21, 1999 EF1 51 km 0
Jul 4, 1998 EF1 34 km 0
Jul 4, 1998 EF1 45 km 0
Jun 29, 1991 EF1 69 km 0
Jul 9, 1983 EF1 54 km 1
Jul 13, 1980 EF1 28 km 0
Jun 27, 1975 EF1 88 km 0
Jun 11, 1972 EF1 96 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: GAP/ROUGH CREEK (53,708 ac, 1999).

Year Name Acres Distance
1999 GAP/ROUGH CREEK 53,708 98 km
1988 BAINVILLE 12,790 62 km
2016 FLAGSTAFF HILL 9,129 43 km
2012 HIGHWAY 13-20 8,372 39 km
2017 YOOPER 7,834 19 km
2018 BUFFALO PASTURE 7,624 33 km
2003 GREYBULL 7,229 43 km
1999 OUTLOOK 6,292 82 km
2021 SMITH 5,212 7 km
2006 BUFFALO RANCH 5,206 37 km
1999 ANTELOPE 5,118 65 km
2020 BULL 3,428 58 km
2003 3 MILE 3,394 96 km
1988 MONTANA LINE 3,307 80 km
2022 BLISTER 3,298 54 km
2021 GREAT DIVIDE - DAWSON 3,003 95 km
1999 HALLOWEEN 2,845 44 km
2021 BADGER HOLE 2,804 65 km
2021 13 MILE FIRE 2,585 93 km
2020 SAGE 2,554 75 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 12°F (-11°C) 0.4 in Coldest
February 16°F (-9°C) 0.3 in Driest
March 28°F (-2°C) 0.6 in
April 42°F (5°C) 1.0 in
May 52°F (11°C) 2.2 in
June 62°F (16°C) 2.9 in Wettest
July 68°F (20°C) 2.6 in Warmest
August 67°F (20°C) 1.4 in
September 56°F (13°C) 1.1 in
October 42°F (5°C) 0.9 in
November 27°F (-3°C) 0.4 in
December 15°F (-10°C) 0.4 in

Brockton has a seasonal temperature swing of 57°F / from 12°F in January to 68°F in July. Total annual precipitation is 14.2 inches, with June being the wettest month (2.9") and February the driest (0.3").

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