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Weather & Climate in Crow Agency, MT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Crow Agency has a cool climate with an average annual temperature of 45°F (7°C). Winters average 21°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 14.9 inches (drier than the 38-inch national average). The area receives 47.4 inches of snow annually, making winter weather a significant factor for residents. 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 3,034 feet.
Temperature
21°F Jan (-6°C)
70°F Jul (21°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 3,034 ft (925 m) |
| Area | 7.3 sq mi (19.0 km²) |
| Population Density | 287/sq mi |
| Coordinates | 45.6027°N, 107.4592°W |
| Timezone | America/Denver |
| County | Big Horn County County |
| Nearest Airport | Billings Logan International (BIL) 54 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 57.2 / 100 |
| Social Vulnerability | 94.2 / 100 |
| Community Resilience | 4.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Aug 22, 2009 | 20 km SSE of Birney, Montana | M4.0 | 94 km | 14 km |
| Feb 25, 1993 | 31 km N of Arvada, Wyoming | M3.9 | 132 km | 5 km |
| Jul 6, 2021 | 27 km SSE of Melstone, Montana | M3.6 | 88 km | 10 km |
| Dec 23, 1991 | 10 km SW of Colstrip, Montana | M3.6 | 63 km | 5 km |
| Jul 21, 2023 | Eastern Montana | M3.2 | 109 km | 5 km |
| Feb 13, 1998 | 12 km NE of Hyattville, Wyoming | M3.0 | 141 km | 5 km |
| May 25, 2018 | 45 km W of Biddle, Montana | M2.9 | 133 km | 16 km |
| Mar 23, 2023 | 8 km S of Shell, Wyoming | M2.8 | 129 km | 11 km |
| May 21, 2013 | 32 km NE of Melstone, Montana | M2.8 | 130 km | 7 km |
| Mar 30, 2018 | 20 km NNE of Sheridan, Wyoming | M2.8 | 87 km | 5 km |
| Jan 15, 2023 | 6 km NE of Ashland, Montana | M2.8 | 98 km | 11 km |
| Aug 7, 2022 | 38 km N of Arvada, Wyoming | M2.8 | 130 km | 11 km |
| May 19, 2017 | 6 km ESE of Birney, Montana | M2.7 | 87 km | 3 km |
| Jun 2, 2019 | 14 km WSW of Birney, Montana | M2.6 | 70 km | 5 km |
| Mar 31, 2009 | 36 km NNE of Arvada, Wyoming | M2.6 | 136 km | 17 km |
| Apr 22, 2018 | 8 km ENE of Ashland, Montana | M2.6 | 101 km | 5 km |
| Jan 6, 2016 | 27 km ENE of Lovell, Wyoming | M2.6 | 87 km | 12 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
41 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 2, 1985 | EF3 | 94 km | 0.2 mi | 0 |
| Jun 16, 1965 | EF3 | 84 km | 20.6 mi | 0 |
| Jun 20, 2010 | EF2 | 83 km | 0.7 mi | 0 |
| May 4, 1986 | EF2 | 96 km | 0.1 mi | 0 |
| Jul 2, 1958 | EF2 | 82 km | 0.5 mi | 0 |
| Jun 7, 2018 | EF1 | 55 km | 0.8 mi | 0 |
| May 21, 2016 | EF1 | 83 km | 2.0 mi | 0 |
| Jun 22, 1996 | EF1 | 20 km | 4.0 mi | 0 |
| Jul 9, 1991 | EF1 | 18 km | 0.1 mi | 0 |
| Jun 21, 1991 | EF1 | 27 km | 0.2 mi | 0 |
| Jun 21, 1991 | EF1 | 90 km | 0.2 mi | 0 |
| May 24, 1990 | EF1 | 83 km | 0.2 mi | 0 |
| Jun 21, 1984 | EF1 | 85 km | 2.0 mi | 0 |
| Jun 21, 1984 | EF1 | 36 km | 1.0 mi | 0 |
| Jun 15, 1984 | EF1 | 81 km | 1.0 mi | 0 |
| Jun 14, 1980 | EF1 | 96 km | 0.1 mi | 0 |
| Jul 6, 1955 | EF1 | 72 km | 2.0 mi | 0 |
| Jul 6, 1955 | EF1 | 71 km | 2.0 mi | 0 |
| Jun 6, 2011 | EF0 | 85 km | 0.3 mi | 0 |
| Jun 10, 2004 | EF0 | 91 km | 3.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RICHARD SPRING (168,765 acres, 2021).
| Year | Name | Acres Burned | Distance |
| 2021 | RICHARD SPRING | 168,765 | 73 km |
| 1984 | HAWK CREEK | 157,778 | 96 km |
| 2012 | CHALKY | 132,680 | 54 km |
| 2008 | DUNN MTN. ASSIST | 105,494 | 89 km |
| 2006 | PINE RIDGE COMPLEX | 103,074 | 49 km |
| 2006 | BUNDY RAILROAD | 91,575 | 70 km |
| 2012 | SARPY HILLS COMPLEX | 83,942 | 16 km |
| 2021 | P F | 66,375 | 23 km |
| 2000 | STAG | 62,381 | 98 km |
| 1994 | BABY DEAN | 61,955 | 53 km |
| 2020 | SARPY | 51,619 | 36 km |
| 2017 | WITTEN | 27,938 | 72 km |
| 2003 | LITTLEHAWK | 27,926 | 41 km |
| 2021 | MUSSELSHELL TRAIL RD | 22,723 | 76 km |
| 1988 | EARLYBIRD | 21,730 | 74 km |
| 2011 | BLACK SPRINGS COMPLEX | 19,473 | 51 km |
| 2024 | MCGHEE | 19,161 | 80 km |
| 2020 | RICE | 15,883 | 96 km |
| 1988 | KIRBY | 14,253 | 64 km |
| 2022 | BUSMAN ROAD | 12,584 | 79 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 0.8 in | Coldest |
| February | 26°F (-3°C) | 0.7 in | Driest |
| March | 35°F (2°C) | 1.0 in | |
| April | 45°F (7°C) | 1.9 in | |
| May | 55°F (13°C) | 2.6 in | Wettest |
| June | 64°F (18°C) | 2.2 in | |
| July | 70°F (21°C) | 1.1 in | |
| August | 71°F (22°C) | 1.0 in | Warmest |
| September | 61°F (16°C) | 1.7 in | |
| October | 49°F (9°C) | 1.4 in | |
| November | 34°F (1°C) | 1.0 in | |
| December | 24°F (-5°C) | 0.8 in |
Crow Agency has a seasonal temperature swing of 50°F / from 21°F in January to 71°F in August. Total annual precipitation is 16.2 inches, with May being the wettest month (2.6") and February the driest (0.7").