
Rattlesnake Wilderness
- Annual mean
- 3.9 °C
- Warmest month
- July
- Wettest month
- June
Review long-term averages for temperature, precipitation, humidity, and wind at a representative coordinate.
The climate profile for Rattlesnake National Recreation Area provides a structured look at monthly atmospheric conditions based on data from 1991 to 2020. This data illustrates long-term norms for temperature, daily precipitation rates, relative humidity, wind speed, and daylight hours at a single representative coordinate within the landscape. These measurements offer a clear view of how weather patterns fluctuate through the year without providing live forecasts or current park conditions.

Long-term monthly averages tracking thermal range alongside daily precipitation rates
Trace long-term monthly temperature bounds, average precipitation rates, humidity, wind, and daylight hours.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -7.5 °C-24.6° to 1.3° | 2.3 mm/day | 98.2% | 1.9 m/s | 8.8 hours |
| February | -6.6 °C-22.6° to 3.3° | 2.2 mm/day | 95.7% | 2 m/s | 10 hours |
| March | -2.1 °C-16.4° to 10.2° | 2.1 mm/day | 88% | 2 m/s | 11.7 hours |
| April | 2.4 °C-8.6° to 17.6° | 2.1 mm/day | 78.3% | 2 m/s | 13.4 hours |
| May | 8 °C-4.4° to 23.2° | 2.4 mm/day | 72.8% | 1.9 m/s | 14.9 hours |
| June | 12.1 °C-0.5° to 27.3° | 2.7 mm/day | 71.2% | 1.8 m/s | 15.6 hours |
| July | 17.4 °C3.5° to 32.4° | 1.1 mm/day | 59.3% | 1.8 m/s | 15.3 hours |
| August | 17.3 °C3.7° to 32.9° | 1.1 mm/day | 52.2% | 1.8 m/s | 14 hours |
| September | 11.7 °C-2.4° to 29.4° | 1.4 mm/day | 57.9% | 1.8 m/s | 12.3 hours |
| October | 4 °C-8.3° to 22.5° | 1.9 mm/day | 71.4% | 1.9 m/s | 10.6 hours |
| November | -2.7 °C-15.3° to 10.7° | 2.4 mm/day | 87.2% | 1.9 m/s | 9.1 hours |
| December | -7.4 °C-22.3° to 2.2° | 2.4 mm/day | 95.6% | 1.9 m/s | 8.4 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparative monthly averages for temperature, precipitation, humidity, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Explore monthly temperature and precipitation normals across diverse protected landscapes and geographic settings.







Continue your geographic discovery by examining the protected boundaries and varied terrain of Rattlesnake National Recreation Area within Montana. Use MoriAtlas to trace the drainage systems, forest corridors, and mountain landscapes that define this essential Northern Rockies wildland unit.