Weather & Climate in Belfry, MT

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

Belfry experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 24°F in January while summers reach 70°F in July. The area gets 311 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 11.5 inches (drier than the 38-inch national average). The area receives 30.3 inches of snow annually, a moderate snowfall amount. 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 3,846 feet.

Temperature

24°F Jan (-4°C) 70°F Jul (21°C)

Annual Average	45.7°F
	15% below US avg
January Average	24°F (-4°C)
July Average	70°F (21°C)
Sunny Days	311 days/yr

Geography

Elevation	3,846 ft (1,172 m)
Area	1.7 sq mi (4.5 km²)
Population Density	144/sq mi
Coordinates	45.1372°N, 108.9981°W
Timezone	America/Denver
County	Yellowstone County County
Nearest Airport	Yellowstone Regional (COD) 43 miles away

Precipitation & Snow

Annual Rainfall 11.5"

70% below US avg

Snowfall 30.3"

Wettest Month (May) 2.05"

Driest Month (Feb) 0.39"

Air Quality

AQI Median	26.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	83.6 / 100
Social Vulnerability	20.3 / 100
Community Resilience	82.3 / 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

282 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Mar 30, 2014	22 km S of Mammoth, Wyoming	M4.8	139 km	6 km
May 11, 2022	36 km S of Silver Gate, Montana	M4.2	94 km	14 km
Nov 24, 2000	24 km S of Mammoth, Wyoming	M4.2	140 km	9 km
Mar 25, 2008	35 km S of Silver Gate, Montana	M4.2	94 km	4 km
Sep 18, 2022	22 km SSW of Mammoth, Wyoming	M3.9	148 km	11 km
May 18, 2006	69 km NNE of Kelly, Wyoming	M3.8	145 km	7 km
Jan 30, 2023	9 km NNW of Livingston, Montana	M3.8	142 km	20 km
Nov 26, 1998	63 km SE of West Yellowstone, Montana	M3.8	150 km	6 km
Jan 29, 2025	24 km SSW of Mammoth, Wyoming	M3.7	146 km	8 km
Mar 29, 2023	56 km SSE of Mammoth, Wyoming	M3.7	127 km	4 km
Jan 9, 2003	23 km E of Wilsall, Montana	M3.7	145 km	11 km
Sep 24, 1994	39 km SSE of Mammoth, Wyoming	M3.7	128 km	5 km
Mar 30, 2014	21 km S of Mammoth, Wyoming	M3.7	141 km	3 km
Jul 17, 2021	63 km SSE of Mammoth, Wyoming	M3.6	130 km	6 km
Jun 16, 1997	25 km ENE of West Yellowstone, Montana	M3.6	149 km	9 km
Jul 20, 1992	52 km SSE of Mammoth, Wyoming	M3.6	124 km	0 km
Mar 30, 2014	Wyoming	M3.6	139 km	4 km
Mar 26, 2014	20 km SSW of Mammoth, Wyoming	M3.5	145 km	5 km
Jul 20, 1992	51 km SSE of Mammoth, Wyoming	M3.5	125 km	2 km
Nov 24, 2000	25 km S of Mammoth, Wyoming	M3.5	140 km	8 km

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

Tornado History

42 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 3 injuries.

Date	Rating	Distance	Path	Fatalities
Aug 2, 1985	EF3	89 km	0.2 mi	0
Jun 16, 1965	EF3	83 km	20.6 mi	0
Jun 20, 2010	EF2	85 km	0.7 mi	0
Jun 16, 2010	EF2	25 km	1.0 mi	0
Jul 11, 1978	EF2	54 km	0.4 mi	0
Jun 26, 1964	EF2	47 km	1.0 mi	0
Jun 12, 1962	EF2	87 km	0.5 mi	0
Jul 2, 1958	EF2	84 km	0.5 mi	0
Jun 6, 1997	EF1	98 km	1.0 mi	0
Jun 21, 1991	EF1	81 km	0.2 mi	0
May 18, 1991	EF1	44 km	0.2 mi	0
May 24, 1990	EF1	22 km	0.2 mi	0
Aug 25, 1986	EF1	69 km	1.0 mi	0
Jul 24, 1981	EF1	59 km	0.1 mi	0
Jun 18, 1978	EF1	68 km	0.1 mi	0
Jun 26, 1976	EF1	46 km	2.0 mi	0
Aug 12, 1958	EF1	65 km	0.5 mi	0
Jul 6, 1955	EF1	99 km	2.0 mi	0
Jun 12, 2017	EF0	80 km	0.7 mi	0
May 16, 2015	EF0	73 km	1.4 mi	0

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

Nearby Volcanoes

1 volcano within 200 km. Closest: Yellowstone (154 km).

Name	Type	Elevation	Last Eruption	Distance
Yellowstone	Caldera(s)	2,805 m (9,203 ft)	-1350	154 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CLOVERMIST (303,427 acres, 1988).

Year	Name	Acres Burned	Distance
1988	CLOVERMIST	303,427	83 km
2006	DERBY	200,993	81 km
1988	STORM CREEK	116,027	80 km
2008	GUNBARREL	69,730	76 km
2003	HOBBLE	38,365	93 km
1988	CLOVER	34,035	94 km
2021	ROBERTSON DRAW	31,132	18 km
1996	SHEPARD MTN	17,379	48 km
2016	WHIT	12,731	86 km
1994	BLACK BUTTE	10,231	96 km
2008	CASCADE	10,017	37 km
2010	STUMP GULCH	8,873	69 km
2021	CRATER RIDGE	8,147	100 km
2021	TROUT CREEK	7,804	66 km
2011	HOLE IN THE WALL	6,559	30 km
2006	BIRTHDAY2	6,553	93 km
2003	DEEP LAKE	5,466	37 km
2002	COW CREEK	5,162	47 km
2002	RED WAFFLE	5,060	45 km
2005	BIG HORN	4,899	70 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	24°F (-4°C)	0.6 in
February	28°F (-3°C)	0.4 in	Driest
March	36°F (2°C)	0.6 in
April	44°F (7°C)	1.0 in
May	54°F (12°C)	2.1 in	Wettest
June	63°F (17°C)	1.7 in
July	70°F (21°C)	0.9 in	Warmest
August	69°F (20°C)	0.8 in
September	58°F (15°C)	1.2 in
October	46°F (8°C)	0.9 in
November	32°F (0°C)	0.5 in
December	23°F (-5°C)	0.4 in	Coldest

Belfry has a seasonal temperature swing of 47°F / from 23°F in December to 70°F in July. Total annual precipitation is 11.0 inches, with May being the wettest month (2.1") and February the driest (0.4").

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