
Gifford Pinchot National Forest
- Annual mean
- 6.6 °C
- Warmest month
- August
- Wettest month
- December
Detailed atmospheric averages and monthly climate patterns at a representative coordinate.
Understand the annual climatological rhythm of Mount Adams Wilderness through representative-point measurements of temperature, precipitation, humidity, wind, and daylight. These climate normals derived from NASA POWER satellite data span the 1991 to 2020 period. Measurements reflect local averages for one specific elevation rather than regional weather forecasts or entire-park conditions.

Long-term monthly temperature averages and daily precipitation rates across the calendar year
Analyze average temperature bounds, precipitation rates, and daylight hours across the annual calendar cycle.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -1.6 °C-12.8° to 6.9° | 5.2 mm/day | 93.3% | 2.5 m/s | 8.9 hours |
| February | -0.4 °C-10.7° to 8.6° | 4.2 mm/day | 88.7% | 2.6 m/s | 10.1 hours |
| March | 2.4 °C-7.1° to 14.6° | 3.7 mm/day | 84.4% | 2.5 m/s | 11.7 hours |
| April | 5.5 °C-3.8° to 19.6° | 2.7 mm/day | 78.9% | 2.6 m/s | 13.4 hours |
| May | 10.1 °C-1° to 25.2° | 2 mm/day | 75% | 2.6 m/s | 14.8 hours |
| June | 13 °C2.4° to 28.1° | 1.3 mm/day | 73.7% | 2.6 m/s | 15.5 hours |
| July | 16.9 °C5° to 31.7° | 0.4 mm/day | 68.4% | 2.5 m/s | 15.2 hours |
| August | 17 °C5.5° to 31.5° | 0.5 mm/day | 64.4% | 2.3 m/s | 13.9 hours |
| September | 13.5 °C2° to 28.6° | 1.2 mm/day | 65.6% | 2.3 m/s | 12.3 hours |
| October | 7.3 °C-3.1° to 21.2° | 3.1 mm/day | 76.8% | 2.4 m/s | 10.6 hours |
| November | 1.8 °C-8.3° to 12.7° | 5.3 mm/day | 88.5% | 2.5 m/s | 9.2 hours |
| December | -1.8 °C-12° to 6.6° | 5.8 mm/day | 92.8% | 2.5 m/s | 8.5 hours |
Comparative monthly averages for temperature, precipitation, humidity, wind, 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 daylight patterns across varied regional landscapes




Examine the complex volcanic and subalpine terrain of this Washington wilderness through a dedicated geographic lens. MoriAtlas provides a clear look at the boundaries and natural features defining this massive stratovolcano landscape, enabling deeper understanding of the diverse ecological gradients within the Cascade Range.