Weather & Climate in Glen, MT

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Glen has a cool climate with an average annual temperature of 42°F (5°C). Winters average 22°F in January while summers reach 65°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 9.8 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 26 / among the cleanest air in the country. The city sits at an elevation of 4,991 feet.

Temperature

22°F Jan (-5°C) 65°F Jul (18°C)

Annual Average	41.8°F
	23% below US avg
January Average	22°F (-5°C)
July Average	65°F (18°C)
Sunny Days	293 days/yr

Geography

Elevation	4,991 ft (1,521 m)
Area	0.3 sq mi (0.8 km²)
Population Density	207/sq mi
Coordinates	45.4789°N, 112.6920°W
Timezone	America/Denver
County	Beaverhead County County
Nearest Airport	Bozeman Yellowstone International (BZN) 77 miles away

Precipitation & Snow

Annual Rainfall 9.8"

74% below US avg

Wettest Month (Jun) 2.05"

Driest Month (Feb) 0.28"

Air Quality

AQI Median	26.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	42.9 / 100
Social Vulnerability	77.2 / 100
Community Resilience	24.0 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Low
Wildfire	Relatively 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 Moderate
Landslide	Relatively Moderate
Volcano	Very Low
Avalanche	Relatively High

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

576 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.

Jul 26, 2005	16 km N of Dillon, Montana	M5.6	14 km	13 km
Aug 20, 1999	22 km NW of Lima, Montana	M5.1	78 km	16 km
Jul 6, 2017	15 km S of Lincoln, Montana	M5.0	148 km	15 km
May 4, 1992	20 km E of Challis, Idaho	M4.6	148 km	10 km
Apr 9, 2019	9 km NE of Lima, Montana	M4.6	88 km	14 km
May 8, 2007	8 km NNW of Alder, Montana	M4.4	45 km	14 km
Apr 5, 2011	28 km NNE of Spencer, Idaho	M4.4	108 km	12 km
Feb 5, 2006	44 km NE of Spencer, Idaho	M4.4	109 km	14 km
Jun 13, 2016	45 km W of Hebgen Lake Estates, Montana	M4.3	111 km	10 km
Oct 28, 1998	18 km S of Whitehall, Montana	M4.3	50 km	5 km
Aug 16, 2019	4 km NW of Manhattan, Montana	M4.2	113 km	2 km
Jul 14, 2023	3 km S of Lima, Montana	M4.2	97 km	12 km
Jun 7, 1994	21 km E of Challis, Idaho	M4.1	145 km	5 km
Apr 8, 2000	8 km ENE of Townsend, Montana	M4.1	138 km	5 km
Aug 30, 1997	25 km WNW of Hebgen Lake Estates, Montana	M4.1	118 km	4 km
Aug 6, 2019	3 km NW of Manhattan, Montana	M4.1	113 km	5 km
Oct 7, 2024	11 km E of Dillon, Montana	M4.1	32 km	17 km
Jun 18, 2006	6 km S of Pony, Montana	M4.1	63 km	12 km
Sep 3, 2016	16 km S of Whitehall, Montana	M4.0	52 km	8 km
Aug 26, 1999	21 km NW of Lima, Montana	M4.0	78 km	12 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

18 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.

Date	Rating	Distance	Path	Fatalities
Jun 14, 1962	EF2	56 km	0.1 mi	0
May 19, 1962	EF2	20 km	2.0 mi	0
Jul 3, 1988	EF1	58 km	0.2 mi	0
Aug 24, 1984	EF1	92 km	0.1 mi	0
Jun 6, 1976	EF1	55 km	3.0 mi	0
May 29, 1965	EF1	21 km	0.1 mi	0
Jun 1, 1956	EF1	99 km	0.5 mi	0
Aug 6, 2023	EF0	92 km	1.6 mi	0
Aug 20, 2018	EF0	60 km	0.8 mi	0
Jul 10, 2016	EF0	29 km	0.0 mi	0
Jun 29, 1999	EF0	85 km	0.2 mi	0
Sep 15, 1997	EF0	70 km	0.1 mi	0
Jul 19, 1997	EF0	31 km	0.1 mi	0
Sep 5, 1995	EF0	85 km	0.1 mi	0
Jun 29, 1992	EF0	70 km	0.1 mi	0
May 16, 1991	EF0	70 km	0.2 mi	0
Jul 14, 1962	EF0	56 km	0.1 mi	0
Aug 2, 1959	EF0	26 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

1 volcano within 200 km. Closest: Yellowstone (197 km).

Name	Type	Elevation	Last Eruption	Distance
Yellowstone	Caldera(s)	2,805 m (9,203 ft)	-1350	197 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: MEYERS (68,711 acres, 2017).

Year	Name	Acres Burned	Distance
2017	MEYERS	68,711	88 km
2000	MUSSIGBROD COMPLEX (MUSSIGBROD)	64,810	85 km
2021	TRAIL CREEK	62,432	85 km
2021	ALDER CREEK	38,189	51 km
2021	HAYSTACK	26,118	84 km
2007	RAT CREEK	25,929	86 km
2022	TRAIL RIDGE	19,532	94 km
2020	BEAR CREEK	14,978	85 km
2012	BEAR TRAP 2	14,875	88 km
2006	CLARKS CANYON	14,848	47 km
2007	PATTENGAIL CREEK	13,471	47 km
2018	GOLDSTONE	9,812	76 km
1988	SWEETWATER	8,405	53 km
2018	MONUMENT	6,973	85 km
2013	EUREKA	6,213	95 km
2020	SOURDOUGH	5,755	94 km
2015	BEAR LAKE	4,695	41 km
2020	STATE CREEK	4,549	78 km
2012	PONY	4,453	60 km
2018	WIGWAM	4,412	73 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	22°F (-5°C)	0.4 in	Coldest
February	26°F (-4°C)	0.3 in	Driest
March	31°F (-1°C)	0.6 in
April	38°F (4°C)	0.9 in
May	47°F (8°C)	1.9 in
June	55°F (13°C)	2.1 in	Wettest
July	65°F (18°C)	1.2 in	Warmest
August	61°F (16°C)	1.3 in
September	52°F (11°C)	1.2 in
October	42°F (6°C)	0.6 in
November	30°F (-1°C)	0.5 in
December	22°F (-5°C)	0.4 in

Glen has a seasonal temperature swing of 43°F / from 22°F in January to 65°F in July. Total annual precipitation is 11.2 inches, with June being the wettest month (2.1") and February the driest (0.3").

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