Weather & Climate in Belfry, MT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Belfry has a cool climate with an average annual temperature of 43°F (6°C). Winters average 26°F in January while summers reach 66°F in July. Annual precipitation totals 22.7 inches (drier than the 38-inch national average). The area receives 141.9 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 3,846 feet.
Temperature
26°F Jan (-4°C)
66°F Jul (19°C)
| Annual Average | 43.4°F |
| 20% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 66°F (19°C) |
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
Air Quality
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 | 26°F (-4°C) | 0.8 in | Driest |
| February | 26°F (-4°C) | 1.1 in | |
| March | 34°F (1°C) | 1.8 in | |
| April | 41°F (5°C) | 2.8 in | |
| May | 49°F (10°C) | 4.7 in | Wettest |
| June | 58°F (14°C) | 2.6 in | |
| July | 66°F (19°C) | 1.5 in | Warmest |
| August | 65°F (18°C) | 1.0 in | |
| September | 56°F (14°C) | 1.6 in | |
| October | 44°F (7°C) | 2.3 in | |
| November | 32°F (0°C) | 1.4 in | |
| December | 25°F (-4°C) | 1.0 in | Coldest |
Belfry has a seasonal temperature swing of 41°F / from 25°F in December to 66°F in July. Total annual precipitation is 22.7 inches, with May being the wettest month (4.7") and January the driest (0.8").