Colstrip, MT
Climate overview — based on NOAA 1991-2020 normals from COLSTRIP, MT US.
Year-round temperatures (°F)
Climate summary
Colstrip has an annual average temperature of 46.1°F with about 16.4 inches of precipitation per year and 36.6 inches of snow. The warmest month is July (average high 85.0°F), and the coldest is January (average low 13.5°F). May is typically the wettest month (3.14 in) and December the driest (0.56 in). Snow typically falls from September through May.
Best time to visit Colstrip
Full guide →Climate change signal
All-time records →32 of 366 (8.7%) of Colstrip's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1920s | 9 | |
| 1930s | 92 | |
| 1940s | 38 | |
| 1950s | 33 | |
| 1960s | 42 | |
| 1970s | 14 | |
| 1980s | 46 | |
| 1990s | 38 | |
| 2000s | 17 | |
| 2010s | 20 | |
| 2020s | 17 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 35.8°F | 13.5°F | 24.7°F | 0.65 in | 7.4 in | 7 |
| February | 37.1°F | 15.1°F | 26.1°F | 0.69 in | 7.3 in | 6 |
| March | 47.1°F | 23.9°F | 35.5°F | 0.95 in | 5.5 in | 8 |
| April | 55.4°F | 31.9°F | 43.7°F | 1.92 in | 3.3 in | 9 |
| May | 64.9°F | 41.9°F | 53.4°F | 3.14 in | 0.5 in | 12 |
| June | 74.9°F | 50.8°F | 62.9°F | 2.48 in | — | 11 |
| July | 85.0°F | 57.2°F | 71.1°F | 1.42 in | — | 7 |
| August | 84.0°F | 55.2°F | 69.6°F | 1.03 in | — | 6 |
| September | 73.4°F | 45.8°F | 59.6°F | 1.43 in | 0.2 in | 6 |
| October | 58.1°F | 33.7°F | 45.9°F | 1.44 in | 2.3 in | 7 |
| November | 45.9°F | 23.6°F | 34.8°F | 0.69 in | 3.9 in | 6 |
| December | 36.6°F | 15.3°F | 26.0°F | 0.56 in | 6.2 in | 6 |
Climate twins of Colstrip
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).