Butte Valley National Grassland
- Annual mean
- 8.1 °C
- Warmest month
- July
- Wettest month
- December
Twelve-month climate patterns derived from 1991 to 2020 representative point measurements.
Explore the long-term climatic rhythm of Mountain Lakes Wilderness through consistent monthly averages for temperature, precipitation, relative humidity, wind speed, and daylight hours. These data points reflect atmospheric conditions recorded over three decades at a representative elevation of 1426.68 meters. The provided figures offer a foundational look at local climate trends across the calendar year, distinct from current weather patterns or short-term forecasts.

Analysis of twelve month average minimum, mean, and maximum temperatures alongside daily precipitation rates
Analyze average temperature bounds, daily precipitation rates, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -1.5 °C-13.1° to 8.1° | 3.2 mm/day | 89.8% | 2.3 m/s | 9.3 hours |
| February | -0.3 °C-11.1° to 11.5° | 2.7 mm/day | 85.6% | 2.4 m/s | 10.3 hours |
| March | 2.2 °C-8.3° to 16.2° | 2.6 mm/day | 80.8% | 2.4 m/s | 11.7 hours |
| April | 4.8 °C-5.6° to 20.6° | 2 mm/day | 76.3% | 2.3 m/s | 13.2 hours |
| May | 9.5 °C-3.3° to 25.4° | 1.6 mm/day | 72.1% | 2.2 m/s | 14.4 hours |
| June | 13.5 °C-0.1° to 30.1° | 0.9 mm/day | 66.5% | 2.1 m/s | 15.1 hours |
| July | 19 °C4.8° to 34.3° | 0.3 mm/day | 55.7% | 1.9 m/s | 14.8 hours |
| August | 18.4 °C4.5° to 34.2° | 0.4 mm/day | 50.9% | 1.9 m/s | 13.7 hours |
| September | 14.5 °C0.5° to 31° | 0.6 mm/day | 51.5% | 2 m/s | 12.2 hours |
| October | 8 °C-4.2° to 25° | 1.5 mm/day | 63.7% | 2.1 m/s | 10.8 hours |
| November | 1.8 °C-9° to 17° | 2.9 mm/day | 80.7% | 2.3 m/s | 9.6 hours |
| December | -1.9 °C-13.4° to 7.6° | 3.9 mm/day | 89% | 2.3 m/s | 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.
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 daylight rhythms across diverse geographic settings.







Continue your geographic discovery of the southern Cascades by examining the unique landscape of Mountain Lakes Wilderness. This MoriAtlas entry provides a structured look at its volcanic ridgelines and glacial cirque basins to deepen your understanding of protected terrain in Oregon.