Cold steppe climate
Climate Colstrip - Montana
Annual high58ºF
Annual low34ºF
Precipitation14.63 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 36 | 14 | 0.52 | 6 |
| Feb | 38 | 17 | 0.44 | 6 |
| Mar | 47 | 25 | 1.04 | 6 |
| Apr | 56 | 33 | 1.46 | 3 |
| May | 66 | 42 | 2.60 | 1 |
| Jun | 75 | 51 | 2.54 | 0 |
| Jul | 85 | 57 | 1.41 | 0 |
| Aug | 84 | 55 | 0.96 | 0 |
| Sep | 72 | 45 | 1.28 | 1 |
| Oct | 58 | 34 | 1.24 | 2 |
| Nov | 45 | 24 | 0.68 | 4 |
| Dec | 35 | 14 | 0.46 | 6 |
- JanHigh 36ºFLow 14ºFPrecip 0.52 inch
- FebHigh 38ºFLow 17ºFPrecip 0.44 inch
- MarHigh 47ºFLow 25ºFPrecip 1.04 inch
- AprHigh 56ºFLow 33ºFPrecip 1.46 inch
- MayHigh 66ºFLow 42ºFPrecip 2.60 inch
- JunHigh 75ºFLow 51ºFPrecip 2.54 inch
- JulHigh 85ºFLow 57ºFPrecip 1.41 inch
- AugHigh 84ºFLow 55ºFPrecip 0.96 inch
- SepHigh 72ºFLow 45ºFPrecip 1.28 inch
- OctHigh 58ºFLow 34ºFPrecip 1.24 inch
- NovHigh 45ºFLow 24ºFPrecip 0.68 inch
- DecHigh 35ºFLow 14ºFPrecip 0.46 inch
Climate summary
What is the average weather in Colstrip, Montana?
Colstrip experiences a cold semi-arid climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold and bring significant snowfall. The area is generally dry, with low annual precipitation, though spring is notably wetter. Precipitation often arrives in brief showers.
Colstrip weather averages
Annual high58ºF
Annual low34ºF
Precipitation14.63 inch
Snowfall35 inch
Daily normals Colstrip - Montana - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 35.3 | 13.2 | 0.02 | 0.02 | 0.20 | 0.20 |
| Jan 2 | 35.3 | 13.2 | 0.04 | 0.04 | 0.50 | 0.50 |
| Jan 3 | 35.4 | 13.2 | 0.07 | 0.07 | 0.80 | 0.80 |
| Jan 4 | 35.4 | 13.2 | 0.09 | 0.09 | 1.00 | 1.00 |
| Jan 5 | 35.5 | 13.3 | 0.11 | 0.11 | 1.30 | 1.30 |
| Jan 6 | 35.5 | 13.3 | 0.13 | 0.13 | 1.50 | 1.50 |
| Jan 7 | 35.6 | 13.3 | 0.16 | 0.16 | 1.80 | 1.80 |
| Jan 8 | 35.7 | 13.3 | 0.18 | 0.18 | 2.10 | 2.10 |
| Jan 9 | 35.7 | 13.3 | 0.20 | 0.20 | 2.40 | 2.40 |
| Jan 10 | 35.8 | 13.4 | 0.23 | 0.23 | 2.70 | 2.70 |
| Jan 11 | 35.8 | 13.4 | 0.25 | 0.25 | 3.00 | 3.00 |
| Jan 12 | 35.9 | 13.4 | 0.27 | 0.27 | 3.20 | 3.20 |
| Jan 13 | 35.9 | 13.5 | 0.29 | 0.29 | 3.50 | 3.50 |
| Jan 14 | 35.9 | 13.5 | 0.31 | 0.31 | 3.80 | 3.80 |
| Jan 15 | 36.0 | 13.5 | 0.33 | 0.33 | 4.00 | 4.00 |
| Jan 16 | 36.0 | 13.5 | 0.35 | 0.35 | 4.20 | 4.20 |
| Jan 17 | 36.0 | 13.6 | 0.37 | 0.37 | 4.40 | 4.40 |
| Jan 18 | 36.0 | 13.6 | 0.39 | 0.39 | 4.60 | 4.60 |
| Jan 19 | 36.0 | 13.6 | 0.41 | 0.41 | 4.90 | 4.90 |
| Jan 20 | 36.0 | 13.6 | 0.43 | 0.43 | 5.10 | 5.10 |
| Jan 21 | 36.0 | 13.6 | 0.44 | 0.44 | 5.30 | 5.30 |
| Jan 22 | 36.0 | 13.6 | 0.46 | 0.46 | 5.60 | 5.60 |
| Jan 23 | 36.0 | 13.7 | 0.48 | 0.48 | 5.80 | 5.80 |
| Jan 24 | 36.0 | 13.7 | 0.50 | 0.50 | 6.00 | 6.00 |
| Jan 25 | 36.0 | 13.7 | 0.52 | 0.52 | 6.20 | 6.20 |
| Jan 26 | 35.9 | 13.7 | 0.55 | 0.55 | 6.40 | 6.40 |
| Jan 27 | 35.9 | 13.7 | 0.57 | 0.57 | 6.60 | 6.60 |
| Jan 28 | 35.9 | 13.7 | 0.59 | 0.59 | 6.80 | 6.80 |
| Jan 29 | 35.8 | 13.7 | 0.61 | 0.61 | 7.00 | 7.00 |
| Jan 30 | 35.8 | 13.7 | 0.63 | 0.63 | 7.20 | 7.20 |
| Jan 31 | 35.8 | 13.7 | 0.65 | 0.65 | 7.40 | 7.40 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Colstrip - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 84.0 | 59.0 | 0.00 |
| Sep 2 | 91.9 | 62.1 | 0.00 |
| Sep 3 | 87.1 | 61.0 | 0.00 |
| Sep 4 | 99.0 | 60.1 | 0.00 |
| Sep 5 | 89.1 | 57.9 | 0.00 |
| Sep 6 | 87.1 | 64.0 | 0.00 |
| Sep 7 | – | – | – |
| Sep 8 | – | – | – |
| Sep 9 | 78.1 | 44.1 | 0.00 |
| Sep 10 | 87.1 | 50.0 | 0.00 |
| Sep 11 | 66.9 | 51.1 | 0.00 |
| Sep 12 | 66.0 | 48.0 | 0.00 |
| Sep 13 | 79.0 | 42.1 | 0.00 |
| Sep 14 | 68.0 | 50.0 | 0.00 |
| Sep 15 | 70.0 | 43.0 | 0.00 |
| Sep 16 | 73.0 | 48.0 | 0.00 |
| Sep 17 | 75.9 | 48.0 | 0.00 |
| Sep 18 | 82.9 | 57.0 | 0.00 |
| Sep 19 | 63.0 | 55.0 | 0.28 |
| Sep 20 | 57.9 | 54.0 | 2.00 |
| Sep 21 | 69.1 | 51.1 | 0.17 |
| Sep 22 | – | – | – |
| Sep 23 | – | – | – |
| Sep 24 | 82.9 | 55.0 | 0.00 |
| Sep 25 | 82.0 | 54.0 | 0.00 |
| Sep 26 | 73.0 | 39.9 | 0.00 |
| Sep 27 | 64.0 | 41.0 | 0.00 |
| Sep 28 | – | – | – |
| Sep 29 | – | – | – |
| Sep 30 | – | – | – |
The data for September 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature99.0ºF · Sep 4
- Lowest max temperature57.9ºF · Sep 20
- Highest min temperature64.0ºF · Sep 6
- Lowest min temperature39.9ºF · Sep 26
Geo Colstrip - Montana
Location
- Country
- United States
- State
- Montana
- County
- Rosebud
- City
- Colstrip
- Zip Code
- 59327
- Elevation
- 3402 ft
- Longitude
- -106.71
- Latitude
- 45.85
- ICAO
- –
- IATA
- –