
Umpqua National Forest
- Annual mean
- 7.8 °C
- Warmest month
- August
- Wettest month
- December
Long-term data profile covering twelve-month temperature, precipitation, and daylight cycles
The climate profile for Mount Thielsen Wilderness provides a twelve-month analysis of atmospheric conditions based on NASA POWER measurements collected from 1991 to 2020 at a fixed 1625.31 meter elevation point. Readers can compare monthly averages for minimum, mean, and maximum temperatures alongside precipitation rates, relative humidity, wind speed, and daylight hours to understand the annual climatological rhythm of this protected wilderness.

Long-term temperature movement and average daily precipitation across twelve months
Analyze long-term temperature bounds, average daily precipitation, wind speed, relative humidity, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -2.5 °C-14° to 6.1° | 4.5 mm/day | 91.8% | 2.4 m/s | 9.2 hours |
| February | -1.8 °C-12.9° to 8.2° | 3.6 mm/day | 89.8% | 2.4 m/s | 10.3 hours |
| March | 0.2 °C-11° to 13.2° | 3.5 mm/day | 85.7% | 2.4 m/s | 11.7 hours |
| April | 3 °C-7.3° to 18.2° | 2.7 mm/day | 79.6% | 2.3 m/s | 13.2 hours |
| May | 7.7 °C-4.1° to 23° | 2.1 mm/day | 75.1% | 2.1 m/s | 14.5 hours |
| June | 11.3 °C-1.3° to 27.1° | 1.2 mm/day | 71.3% | 2 m/s | 15.1 hours |
| July | 16.2 °C3° to 30.6° | 0.4 mm/day | 64% | 1.8 m/s | 14.8 hours |
| August | 15.7 °C3.1° to 31.2° | 0.5 mm/day | 59.7% | 1.8 m/s | 13.7 hours |
| September | 12.2 °C-0.8° to 28.4° | 0.9 mm/day | 59.1% | 2 m/s | 12.3 hours |
| October | 6.2 °C-5.2° to 22.7° | 2.1 mm/day | 69.4% | 2.1 m/s | 10.7 hours |
| November | 0.5 °C-10.8° to 14.8° | 4.3 mm/day | 84.6% | 2.4 m/s | 9.5 hours |
| December | -2.9 °C-15.1° to 5.7° | 5.4 mm/day | 91.4% | 2.5 m/s | 8.9 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.
Calculated monthly climate highlights comparing temperature, precipitation, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly temperature, precipitation, and daylight rhythms across diverse protected areas








Continue exploring the distinct glacial and volcanic features of Mount Thielsen Wilderness. MoriAtlas provides a structured view of this protected area, allowing you to trace its high-country boundaries, forest transitions, and hydrological connections within the broader Oregon Cascade Range.