
Rattlesnake National Recreation Area
- Annual mean
- 3.9 °C
- Warmest month
- July
- Wettest month
- June
Long-term temperature, precipitation, and daylight data measured at a representative site.
Climate data for Rattlesnake Wilderness provides a twelve-month analysis of atmospheric patterns based on 1991 to 2020 NASA POWER measurements. These records reflect averages for a single representative coordinate at an elevation of 1501.1 meters, focusing on temperature, daily precipitation, relative humidity, wind speed, and seasonal daylight distribution. The data offers insight into long-term climate behavior rather than current weather or specific conditions across the entire protected area.

Long-term monthly temperature ranges and average daily precipitation rates across twelve months
Compare average temperature bounds, precipitation rates, wind, humidity, and calculated daylight across the calendar year.
| 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.
Comparing long-term averages for temperature, precipitation, wind, humidity, and daylight duration.
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly temperature, precipitation, and regional atmospheric patterns across diverse protected landscapes







Dive into the rugged geography and mapped boundaries of Rattlesnake Wilderness. MoriAtlas provides a comprehensive view of this essential wildlife reserve, tracing its elevation shifts, forested ridges, and critical role within the broader Montana mountain wilderness network.