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Weather & Climate in Riverview Colony, MT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Riverview Colony has a cool climate with an average annual temperature of 45°F (7°C). Winters average 20°F in January while summers reach 69°F in July. The area gets 274 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 10.2 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 3,127 feet.
Temperature
20°F Jan (-7°C)
69°F Jul (21°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 3,127 ft (953 m) |
| Area | 0.9 sq mi (2.4 km²) |
| Population Density | 233/sq mi |
| Coordinates | 48.1827°N, 111.0319°W |
| Timezone | America/Denver |
| County | Liberty County County |
| Nearest Airport | Great Falls International (GTF) 51 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 6.3 / 100 |
| Social Vulnerability | 63.7 / 100 |
| Community Resilience | 17.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
22 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Aug 16, 1994 | 27 km W of Chester, Montana | M3.9 | 41 km | 5 km |
| Jul 2, 1992 | 4 km SSE of South Browning, Montana | M3.8 | 150 km | 10 km |
| Jun 5, 1991 | 18 km SW of Shelby, Montana | M3.6 | 75 km | 5 km |
| Jan 20, 2003 | 10 km S of Little Browning, Montana | M3.5 | 104 km | 1 km |
| Nov 17, 1992 | 39 km NNW of Santa Rita, Montana | M3.4 | 148 km | 5 km |
| Aug 15, 1996 | 33 km WNW of Sweet Grass, Montana | M3.4 | 142 km | 5 km |
| Jan 1, 1993 | 20 km WSW of Sweet Grass, Montana | M3.4 | 117 km | 5 km |
| Nov 6, 2002 | 3 km SSE of Little Browning, Montana | M3.4 | 107 km | 1 km |
| Mar 5, 1995 | 2 km NW of Cut Bank, Montana | M3.3 | 110 km | 10 km |
| May 29, 2009 | 11 km S of Little Browning, Montana | M3.2 | 104 km | 0 km |
| Apr 4, 1990 | 4 km WNW of Santa Rita, Montana | M3.1 | 115 km | 6 km |
| Apr 2, 2014 | 13 km NNW of Conrad, Montana | M3.1 | 74 km | 7 km |
| Jun 9, 2009 | 20 km NNW of Santa Rita, Montana | M3.0 | 129 km | 23 km |
| Oct 28, 2013 | 18 km SW of Heart Butte, Montana | M2.9 | 148 km | 21 km |
| May 6, 2014 | 10 km SSW of Cascade, Montana | M2.8 | 123 km | 13 km |
| Mar 26, 2013 | 26 km SW of Heart Butte, Montana | M2.7 | 150 km | 6 km |
| Apr 10, 2024 | 17 km NNW of Santa Rita, Montana | M2.7 | 127 km | 10 km |
| Mar 29, 2008 | 4 km SSE of Little Browning, Montana | M2.6 | 105 km | 3 km |
| Jan 8, 2012 | 8 km W of Valier, Montana | M2.6 | 100 km | 8 km |
| May 10, 2024 | 13 km WSW of Cascade, Montana | M2.6 | 122 km | 26 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
40 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 5, 1988 | EF3 | 90 km | 10.0 mi | 0 |
| Jul 5, 1988 | EF3 | 82 km | 12.0 mi | 0 |
| Jul 3, 1998 | EF1 | 78 km | 0.5 mi | 0 |
| Jun 19, 1998 | EF1 | 70 km | 1.0 mi | 0 |
| Jun 6, 1994 | EF1 | 98 km | 0.1 mi | 0 |
| Jul 5, 1988 | EF1 | 94 km | 0.2 mi | 0 |
| Jun 1, 1980 | EF1 | 45 km | 0.1 mi | 0 |
| May 25, 1980 | EF1 | 60 km | 0.1 mi | 0 |
| May 25, 1980 | EF1 | 41 km | 0.1 mi | 0 |
| Jun 1, 1977 | EF1 | 96 km | 0.1 mi | 0 |
| Jun 1, 1977 | EF1 | 100 km | 0.1 mi | 0 |
| May 24, 1977 | EF1 | 47 km | 0.1 mi | 0 |
| Jul 10, 1965 | EF1 | 46 km | 0.2 mi | 0 |
| Jul 2, 1964 | EF1 | 97 km | 27.0 mi | 0 |
| Jul 1, 1962 | EF1 | 98 km | 3.8 mi | 0 |
| Jun 22, 1962 | EF1 | 92 km | 0.1 mi | 0 |
| Jun 29, 1961 | EF1 | 87 km | 0.1 mi | 0 |
| Jun 29, 1960 | EF1 | 78 km | 0.3 mi | 0 |
| Jun 23, 2018 | EF0 | 64 km | 1.4 mi | 0 |
| Jun 5, 2012 | EF0 | 91 km | 1.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: CENTENNIAL (11,775 acres, 1984).
| Year | Name | Acres Burned | Distance |
| 1984 | CENTENNIAL | 11,775 | 94 km |
| 1988 | LOSTCANYON | 4,532 | 92 km |
| 2008 | CHOUTEAU CO COMPLEX | 4,365 | 51 km |
| 2019 | STUCKEY RD MA | 4,073 | 71 km |
| 1991 | POWER | 3,822 | 65 km |
| 2008 | UNIT 3 MARSH HAZ FUEL REDUCTION | 3,333 | 61 km |
| 2022 | BENTON LAKE UNIT 3 AND 4B | 2,996 | 61 km |
| 2007 | CHOUTEAU CO ASST | 2,646 | 64 km |
| 2022 | MTBLR-FY22-RX | 2,244 | 63 km |
| 2007 | 2007 HAZ FUEL REDUCTION | 2,159 | 81 km |
| 2021 | FOUR SISTERS | 1,999 | 94 km |
| 2021 | EAGLE BUTTE | 1,817 | 84 km |
| 2005 | H RX F COMPLEX BROADCAST BURNS | 1,747 | 60 km |
| 2021 | BENTON LAKE UNIT 5 | 1,716 | 62 km |
| 2012 | BIG STRETCH | 1,524 | 94 km |
| 2023 | MTBLR-HFR-FY23-RX | 1,507 | 64 km |
| 2018 | MTBLR-18-RX-WUI | 1,433 | 64 km |
| 1992 | POWER | 1,290 | 68 km |
| 1999 | SHIRLEY | 1,290 | 91 km |
| 2012 | ANTELOPE HOPKINS HILL | 1,220 | 98 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 0.5 in | Coldest |
| February | 24°F (-4°C) | 0.3 in | Driest |
| March | 34°F (1°C) | 0.6 in | |
| April | 44°F (7°C) | 1.0 in | |
| May | 54°F (12°C) | 2.0 in | |
| June | 63°F (17°C) | 2.2 in | Wettest |
| July | 69°F (21°C) | 1.4 in | Warmest |
| August | 68°F (20°C) | 1.4 in | |
| September | 57°F (14°C) | 1.0 in | |
| October | 47°F (8°C) | 0.6 in | |
| November | 32°F (0°C) | 0.4 in | |
| December | 23°F (-5°C) | 0.4 in |
Riverview Colony has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 11.8 inches, with June being the wettest month (2.2") and February the driest (0.3").