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Weather & Climate in Rockport Colony, MT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rockport Colony has a cool climate with an average annual temperature of 41°F (5°C). Winters average 23°F in January while summers reach 63°F in July. The area gets 200 sunny days per year. 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 4,413 feet.
Temperature
23°F Jan (-5°C)
63°F Jul (17°C)
| Annual Average | 41.3°F |
| 24% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 200 days/yr |
Geography
| Elevation | 4,413 ft (1,345 m) |
| Area | 0.2 sq mi (0.6 km²) |
| Population Density | 200/sq mi |
| Coordinates | 48.0673°N, 112.4761°W |
| Timezone | America/Denver |
| County | Pondera County County |
| Nearest Airport | Cut Bank International (CTB) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 24.6 / 100 |
| Social Vulnerability | 95.3 / 100 |
| Community Resilience | 49.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
333 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Jul 6, 2017 | 11 km SE of Lincoln, Montana | M5.8 | 132 km | 12 km |
| Jul 6, 2017 | 15 km S of Lincoln, Montana | M5.0 | 140 km | 15 km |
| Jul 6, 2017 | 14 km SE of Lincoln, Montana | M4.4 | 135 km | 10 km |
| Jan 30, 2016 | 19 km E of Lincoln, Montana | M4.3 | 125 km | 2 km |
| May 2, 1995 | 2 km NW of Kila, Montana | M4.1 | 149 km | 9 km |
| Jun 29, 1995 | 2 km NNW of Kila, Montana | M4.1 | 148 km | 5 km |
| Apr 15, 1998 | 11 km NE of Swan Lake, Montana | M4.1 | 95 km | 4 km |
| Jul 17, 2017 | 12 km ESE of Lincoln, Montana | M4.0 | 131 km | 13 km |
| Jul 19, 2002 | 43 km NE of Seeley Lake, Montana | M4.0 | 83 km | 25 km |
| Apr 1, 1992 | 10 km ESE of Swan Lake, Montana | M4.0 | 96 km | 5 km |
| Jul 6, 2017 | 14 km SSE of Lincoln, Montana | M4.0 | 137 km | 9 km |
| Oct 19, 2017 | 12 km SE of Lincoln, Montana | M3.9 | 132 km | 4 km |
| Apr 1, 1993 | 15 km E of Lincoln, Montana | M3.9 | 124 km | 5 km |
| Jun 2, 1996 | 37 km N of Ovando, Montana | M3.9 | 91 km | 5 km |
| Aug 16, 1994 | 27 km W of Chester, Montana | M3.9 | 97 km | 5 km |
| Jul 5, 2024 | 24 km ENE of Seeley Lake, Montana | M3.8 | 102 km | 22 km |
| May 1, 1997 | 35 km SSE of Magrath, Canada | M3.8 | 119 km | 5 km |
| Sep 26, 2004 | 14 km WSW of Pablo, Montana | M3.8 | 148 km | 17 km |
| Jun 1, 1996 | 23 km N of Ovando, Montana | M3.8 | 107 km | 10 km |
| Jul 2, 1992 | 4 km SSE of South Browning, Montana | M3.8 | 62 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
17 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| Jul 2, 1966 | EF2 | 64 km | 0.8 mi | 0 |
| Jun 13, 2006 | EF1 | 64 km | 10.0 mi | 0 |
| Jul 3, 1998 | EF1 | 89 km | 0.5 mi | 0 |
| Jun 6, 1994 | EF1 | 66 km | 0.1 mi | 0 |
| Jun 1, 1977 | EF1 | 80 km | 0.1 mi | 0 |
| Jun 1, 1977 | EF1 | 66 km | 0.1 mi | 0 |
| Jul 2, 1964 | EF1 | 63 km | 27.0 mi | 0 |
| Jun 22, 1962 | EF1 | 68 km | 0.1 mi | 0 |
| Jun 6, 1994 | EF0 | 69 km | 0.1 mi | 0 |
| Jun 21, 1993 | EF0 | 67 km | 0.1 mi | 0 |
| Jun 26, 1992 | EF0 | 97 km | 0.1 mi | 0 |
| Jun 29, 1986 | EF0 | 4 km | 0.2 mi | 0 |
| Aug 2, 1981 | EF0 | 68 km | 0.1 mi | 0 |
| Aug 2, 1981 | EF0 | 68 km | 0.1 mi | 0 |
| Jul 3, 1963 | EF0 | 84 km | 0.1 mi | 0 |
| Jun 5, 1963 | EF0 | 46 km | 1.5 mi | 0 |
| Jun 7, 1953 | EF0 | 91 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: CANYON CREEK (167,875 acres, 1988).
| Year | Name | Acres Burned | Distance |
| 1988 | CANYON CREEK | 167,875 | 94 km |
| 2015 | BEAR CREEK | 60,710 | 76 km |
| 2007 | FOOL CREEK | 53,912 | 36 km |
| 2015 | FAMILY PEAK COMPLEX | 49,769 | 41 km |
| 2007 | AHORN | 45,633 | 68 km |
| 1988 | GATES PARK | 42,493 | 44 km |
| 2007 | SKYLAND | 41,237 | 61 km |
| 2003 | LITTLE SALMON CREEK | 33,044 | 82 km |
| 2006 | RED EAGLE | 32,563 | 98 km |
| 2012 | ELBOW PASS COMPLEX | 28,989 | 82 km |
| 2003 | BARTLETT MOUNTAIN | 27,614 | 89 km |
| 2003 | RAMPAGE COMPLEX (DOUBLE MOUNTAIN 2) | 23,680 | 90 km |
| 2015 | TRAIL CREEK | 22,338 | 68 km |
| 2017 | SCALP | 20,309 | 43 km |
| 2015 | THOMPSON | 18,049 | 95 km |
| 2017 | STRAWBERRY | 17,781 | 35 km |
| 2021 | GREENHOUSE | 14,501 | 67 km |
| 2007 | CORPORAL | 14,054 | 67 km |
| 2013 | RED SHALE | 13,712 | 46 km |
| 2015 | MOOSE RIDGE | 11,395 | 48 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.5 in | Coldest |
| February | 27°F (-3°C) | 0.5 in | Driest |
| March | 34°F (1°C) | 0.7 in | |
| April | 43°F (6°C) | 1.1 in | |
| May | 52°F (11°C) | 2.4 in | |
| June | 60°F (16°C) | 2.5 in | Wettest |
| July | 63°F (17°C) | 1.4 in | |
| August | 65°F (19°C) | 1.6 in | Warmest |
| September | 55°F (13°C) | 1.2 in | |
| October | 46°F (8°C) | 0.6 in | |
| November | 32°F (0°C) | 0.5 in | |
| December | 24°F (-4°C) | 0.5 in |
Rockport Colony has a seasonal temperature swing of 43°F / from 23°F in January to 65°F in August. Total annual precipitation is 13.3 inches, with June being the wettest month (2.5") and February the driest (0.5").