
Helena-Lewis and Clark National Forest
- Annual mean
- 4.6 °C
- Warmest month
- July
- Wettest month
- June
Representative annual climatology for temperature, precipitation, wind, and daylight cycles
Analyze the long-term monthly climate patterns for Gates of the Mountains Wilderness based on 1991 to 2020 NASA POWER data. This profile details twelve-month averages for minimum and maximum temperatures, daily precipitation, relative humidity, wind speed, and daylight hours at a single representative coordinate. These statistics provide a consistent climatic benchmark rather than current weather or site-wide forecasts.

Analysis of twelve-month average temperatures and daily precipitation rates across representative coordinates
Track monthly temperature bounds, daily precipitation rates, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -6.8 °C-23.7° to 3.9° | 1 mm/day | 89.8% | 4.2 m/s | 8.8 hours |
| February | -5.5 °C-21° to 7.5° | 1.1 mm/day | 84.6% | 3.9 m/s | 10 hours |
| March | -0.7 °C-15.4° to 14.7° | 1.2 mm/day | 75% | 3.8 m/s | 11.7 hours |
| April | 3.6 °C-8° to 20.5° | 1.9 mm/day | 69.3% | 3.4 m/s | 13.4 hours |
| May | 9.2 °C-4.1° to 25.6° | 2.4 mm/day | 65.1% | 3.1 m/s | 14.9 hours |
| June | 13.9 °C1° to 29.6° | 2.8 mm/day | 63.4% | 3 m/s | 15.6 hours |
| July | 18.8 °C5.5° to 33° | 1.3 mm/day | 55.4% | 2.6 m/s | 15.3 hours |
| August | 18 °C4.6° to 32.7° | 1.2 mm/day | 53.4% | 2.6 m/s | 14 hours |
| September | 12.1 °C-1.9° to 29.2° | 1.3 mm/day | 59.2% | 3 m/s | 12.3 hours |
| October | 4.5 °C-8.4° to 22.6° | 1.3 mm/day | 69% | 3.5 m/s | 10.6 hours |
| November | -1.8 °C-15.1° to 12.6° | 1.1 mm/day | 78.8% | 3.9 m/s | 9.1 hours |
| December | -6.4 °C-21.6° to 4.8° | 1.1 mm/day | 86.3% | 4.1 m/s | 8.4 hours |
Comparative analysis of long-term temperature, precipitation, humidity, wind, and daylight averages across twelve monthly normals
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 normals and precipitation rhythms across different regional settings



Discover the geographic layout and historical context of this prominent Montana wildlife reserve. Use the MoriAtlas dataset to trace the limestone cliffs, ancient fault lines, and river corridors that define this significant wilderness area, providing a comprehensive understanding of its unique position within the broader mountain landscape.