
Gifford Pinchot National Forest
- Annual mean
- 6.6 °C
- Warmest month
- August
- Wettest month
- December
Twelve month analysis of atmospheric conditions, humidity, and daylight at a representative coordinate.
Annual atmospheric patterns for Indian Heaven Wilderness are defined by monthly averages for temperature, precipitation, wind speed, relative humidity, and daylight. These long-term climate normals, derived from NASA POWER data between 1991 and 2020, provide a standardized baseline for a specific representative coordinate at 869.86 meters elevation. The figures track temperature fluctuations from deep winter minima to high summer maxima and quantify precipitation levels throughout the calendar year. These metrics capture historical norms rather than current weather or park-wide conditions, offering a clear perspective on the localized climate rhythm for this Washington wildlife reserve.
Long term monthly averages for temperature range and daily precipitation rates across the twelve month cycle
Analyze average temperature bounds, precipitation rates, humidity, wind, and daylight across all twelve months
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -1.1 °C-11.8° to 7° | 9.5 mm/day | 95.3% | 2.4 m/s | 8.9 hours |
| February | -0.3 °C-10.7° to 7.9° | 7.6 mm/day | 92.4% | 2.3 m/s | 10.1 hours |
| March | 2 °C-7.1° to 13.9° | 7 mm/day | 89.4% | 2.1 m/s | 11.7 hours |
| April | 5 °C-3.9° to 18.9° | 5.3 mm/day | 84.5% | 2 m/s | 13.3 hours |
| May | 9.2 °C-0.8° to 24.1° | 3.3 mm/day | 81.3% | 2 m/s | 14.8 hours |
| June | 11.8 °C2.5° to 27.6° | 2.4 mm/day | 81.1% | 2 m/s | 15.5 hours |
| July | 15.6 °C5.2° to 31.6° | 0.7 mm/day | 76% | 1.8 m/s | 15.1 hours |
| August | 16.1 °C5.5° to 31.5° | 0.9 mm/day | 70.2% | 1.8 m/s | 13.9 hours |
| September | 13.2 °C2.4° to 29.6° | 2.4 mm/day | 69.5% | 1.9 m/s | 12.3 hours |
| October | 7.2 °C-2.9° to 21.4° | 5.9 mm/day | 81.2% | 2 m/s | 10.6 hours |
| November | 2.1 °C-8.2° to 12° | 10 mm/day | 91.5% | 2.2 m/s | 9.2 hours |
| December | -1.3 °C-11.9° to 7° | 10.4 mm/day | 95.1% | 2.4 m/s | 8.5 hours |
Comparative monthly normals for temperature, precipitation, wind, humidity, and daylight duration
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Explore monthly temperature, precipitation, and wind patterns across diverse regional parks.




Examine the unique geological features and vast lake networks within the Indian Heaven Wilderness through our detailed map data. Gain insights into the Cascade plateau terrain and the historical significance of this protected landscape as cataloged by MoriAtlas.