Lassen Volcanic National Park
- Annual mean
- 7.7 °C
- Warmest month
- July
- Wettest month
- December
Twelve month analysis of atmospheric averages based on a representative coordinate in California.
Analyze the long term climate record for Lassen National Forest through monthly temperature averages, precipitation rates, relative humidity, wind speed, and daylight duration. These measurements provide a consistent baseline for understanding the annual atmospheric cycle between 1991 and 2020 at a fixed point of 1700 meters elevation. This data focuses on stationary historical trends rather than current weather fluctuations or seasonal forecasts.

Long term monthly temperature ranges and average daily precipitation patterns for a representative coordinate
Compare twelve months of average temperature bounds, precipitation rates, and daylight hours across long-term norms.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -1.1 °C-12.1° to 9° | 5.2 mm/day | 86.1% | 2.6 m/s | 9.5 hours |
| February | -0.3 °C-10.7° to 10.8° | 5.4 mm/day | 84.2% | 2.6 m/s | 10.4 hours |
| March | 1.9 °C-9.5° to 15.1° | 4.6 mm/day | 81.2% | 2.6 m/s | 11.7 hours |
| April | 4.5 °C-6.5° to 19.1° | 2.7 mm/day | 75.5% | 2.5 m/s | 13.1 hours |
| May | 9.2 °C-3° to 24.1° | 1.9 mm/day | 69% | 2.3 m/s | 14.3 hours |
| June | 14.3 °C0.2° to 30.1° | 0.9 mm/day | 55% | 2.2 m/s | 14.8 hours |
| July | 19.8 °C5.2° to 34.2° | 0.2 mm/day | 37.6% | 2.1 m/s | 14.6 hours |
| August | 19.2 °C5.3° to 33.9° | 0.2 mm/day | 32.3% | 2.1 m/s | 13.6 hours |
| September | 15.4 °C1.3° to 31.1° | 0.4 mm/day | 37.6% | 2.2 m/s | 12.2 hours |
| October | 8.9 °C-3.5° to 25.5° | 1.7 mm/day | 52.6% | 2.4 m/s | 10.9 hours |
| November | 2.4 °C-8.2° to 17.8° | 3.3 mm/day | 72.7% | 2.5 m/s | 9.7 hours |
| December | -1.4 °C-11.6° to 9.3° | 5.7 mm/day | 83.8% | 2.7 m/s | 9.2 hours |
Comparing twelve stored monthly normals for temperature, humidity, wind, and daylight duration across the park.
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 regional atmospheric patterns across diverse protected landscapes



Continue your discovery of protected areas by examining the complex volcanic landscape of Lassen National Forest. This MoriAtlas destination provides clear insights into the terrain and ecological features defining this essential California mountain region. Deepen your understanding of regional geography through our structured park and wilderness mapping resources.