Butte Valley National Grassland
- Annual mean
- 8.1 °C
- Warmest month
- July
- Wettest month
- December
Analysis of twelve-month atmospheric patterns at a representative coordinate in California.
Explore long-term climate normals for Mount Shasta Wilderness based on NASA POWER measurements collected from 1991 to 2020. This data provides a detailed profile of average monthly temperatures, daily precipitation rates, relative humidity, wind speed, and daylight hours at a single representative elevation of 1326 meters. Records represent historical long-term averages rather than current weather conditions or local forecasts across the entire park area.

Long term monthly thermal range and average daily precipitation patterns across the protected landscape
Compare average temperature bounds, daily precipitation rates, humidity, and daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -0.1 °C-11.6° to 10.2° | 4.6 mm/day | 87.1% | 2.3 m/s | 9.4 hours |
| February | 0.9 °C-9° to 12.4° | 4.4 mm/day | 85.5% | 2.4 m/s | 10.4 hours |
| March | 3.2 °C-6.6° to 16.3° | 3.7 mm/day | 82% | 2.4 m/s | 11.7 hours |
| April | 5.7 °C-4.6° to 20.2° | 2.3 mm/day | 77.9% | 2.3 m/s | 13.1 hours |
| May | 10.2 °C-2° to 24.9° | 1.7 mm/day | 73.6% | 2.2 m/s | 14.3 hours |
| June | 14.8 °C1.3° to 31.5° | 0.8 mm/day | 62.4% | 2.1 m/s | 14.9 hours |
| July | 21 °C6° to 36.5° | 0.3 mm/day | 43.7% | 1.9 m/s | 14.7 hours |
| August | 20.6 °C6° to 36.2° | 0.2 mm/day | 37.3% | 1.9 m/s | 13.6 hours |
| September | 16.6 °C1.9° to 33.2° | 0.5 mm/day | 41.1% | 2 m/s | 12.2 hours |
| October | 9.8 °C-3.2° to 27.3° | 1.6 mm/day | 57.1% | 2.2 m/s | 10.8 hours |
| November | 3.4 °C-7.2° to 19° | 3.3 mm/day | 77.3% | 2.2 m/s | 9.6 hours |
| December | -0.4 °C-11.1° to 9.7° | 5.2 mm/day | 86.6% | 2.3 m/s | 9.1 hours |
Comparing twelve long-term 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.
Analyze monthly temperature, precipitation, and daylight patterns across diverse regional settings.



Continue your geographic discovery of Mount Shasta Wilderness with our detailed atlas data. Understand the volcanic structure, glacial patterns, and ecological boundaries of this iconic California landscape through our structured park mapping system at MoriAtlas.