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Weather & Climate in Richey, MT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Richey has a cool climate with an average annual temperature of 44°F (6°C). Winters average 16°F in January while summers reach 71°F in July. The area gets 273 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 14.2 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 2,497 feet.
Temperature
16°F Jan (-9°C)
71°F Jul (21°C)
| Annual Average | 43.6°F |
| 19% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 2,497 ft (761 m) |
| Area | 0.2 sq mi (0.6 km²) |
| Population Density | 827/sq mi |
| Coordinates | 47.6439°N, 105.0696°W |
| Timezone | America/Denver |
| County | McCone County County |
| Nearest Airport | Sidney-Richland Regional (SDY) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 5.3 / 100 |
| Social Vulnerability | 25.4 / 100 |
| Community Resilience | 17.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 25, 2014 | 23 km N of Brockton, Montana | M3.8 | 81 km | 5 km |
| Jul 29, 1998 | 16 km WNW of Froid, Montana | M3.8 | 85 km | 5 km |
| Nov 11, 1998 | 10 km SW of Grenora, North Dakota | M3.5 | 127 km | 5 km |
| Sep 28, 2012 | 22 km ESE of Williston, North Dakota | M3.3 | 136 km | 5 km |
| May 6, 2014 | 12 km NNW of Knife River, Montana | M2.6 | 49 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
63 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 2 fatalities, 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 29, 1961 | EF4 | 67 km | 15.9 mi | 0 |
| May 24, 1953 | EF3 | 100 km | 9.3 mi | 0 |
| Jul 19, 1952 | EF3 | 97 km | 16.4 mi | 1 |
| Jul 15, 2013 | EF2 | 88 km | 23.0 mi | 0 |
| Jul 11, 1995 | EF2 | 86 km | 0.5 mi | 0 |
| Jun 27, 1975 | EF2 | 53 km | 0.1 mi | 0 |
| Jun 25, 1975 | EF2 | 100 km | 0.1 mi | 0 |
| Jun 25, 1975 | EF2 | 75 km | 0.1 mi | 0 |
| Jun 11, 1972 | EF2 | 21 km | 9.1 mi | 0 |
| Sep 21, 1969 | EF2 | 81 km | 1.0 mi | 0 |
| Aug 26, 1954 | EF2 | 40 km | 20.9 mi | 0 |
| Jun 23, 1953 | EF2 | 46 km | 33.5 mi | 0 |
| Jun 30, 2015 | EF1 | 74 km | 17.5 mi | 0 |
| Jun 16, 2010 | EF1 | 85 km | 2.6 mi | 0 |
| Jul 21, 1999 | EF1 | 83 km | 1.0 mi | 0 |
| Jul 4, 1998 | EF1 | 85 km | 2.0 mi | 0 |
| Jul 4, 1998 | EF1 | 77 km | 3.0 mi | 0 |
| Jul 9, 1983 | EF1 | 42 km | 1.0 mi | 1 |
| Jul 13, 1980 | EF1 | 70 km | 0.1 mi | 0 |
| Jul 22, 1962 | EF1 | 85 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: GAP/ROUGH CREEK (53,708 acres, 1999).
| Year | Name | Acres Burned | Distance |
| 1999 | GAP/ROUGH CREEK | 53,708 | 91 km |
| 1988 | BAINVILLE | 12,790 | 88 km |
| 2012 | HIGHWAY 13-20 | 8,372 | 81 km |
| 2017 | YOOPER | 7,834 | 56 km |
| 2018 | BUFFALO PASTURE | 7,624 | 77 km |
| 2003 | GREYBULL | 7,229 | 77 km |
| 2021 | SMITH | 5,212 | 52 km |
| 2006 | BUFFALO RANCH | 5,206 | 78 km |
| 2020 | BULL | 3,428 | 89 km |
| 2003 | 3 MILE | 3,394 | 42 km |
| 1988 | MONTANA LINE | 3,307 | 77 km |
| 2022 | BLISTER | 3,298 | 95 km |
| 2021 | GREAT DIVIDE - DAWSON | 3,003 | 36 km |
| 1999 | HALLOWEEN | 2,845 | 59 km |
| 2021 | BADGER HOLE | 2,804 | 78 km |
| 2020 | SAGE | 2,554 | 90 km |
| 2021 | HIGHWAY 16 NORTH | 2,069 | 76 km |
| 2021 | BRACKETT | 1,756 | 68 km |
| 2021 | THIRTEEN MILE | 1,664 | 54 km |
| 2012 | SKOV | 1,624 | 73 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 16°F (-9°C) | 0.5 in | Coldest |
| February | 20°F (-6°C) | 0.4 in | Driest |
| March | 31°F (-1°C) | 0.6 in | |
| April | 45°F (7°C) | 1.2 in | |
| May | 56°F (14°C) | 2.2 in | |
| June | 66°F (19°C) | 2.7 in | Wettest |
| July | 71°F (21°C) | 1.9 in | |
| August | 71°F (22°C) | 1.4 in | Warmest |
| September | 59°F (15°C) | 1.4 in | |
| October | 47°F (8°C) | 0.8 in | |
| November | 31°F (-1°C) | 0.5 in | |
| December | 19°F (-8°C) | 0.5 in |
Richey has a seasonal temperature swing of 55°F / from 16°F in January to 71°F in August. Total annual precipitation is 14.1 inches, with June being the wettest month (2.7") and February the driest (0.4").