Lassen Volcanic National Park in December
In December, Lassen Volcanic National Park averages a high of 40°F and a low of 22°F, with 6.5 inches of precipitation (rain plus melted snow). About 6,900 people visit, the 9th busiest of 12 (quiet). Days are 9 hours 17 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 40° / 22°F
- Precipitation
- 6.5in
- Snow
- –in
- Daylight
- 9h 17m
- Visitors
- 6,900
- Crowds
- Quiet
Best months for weather and crowds instead: May (moderate), September (busy) and October (moderate).
Higher or lower in the park, expect a different picture: Burney, CA at 3,198 ft averages a December high of 44°F and a low of 22°F.
Weather 1991–2020 averages at Manzanita Lake, CA, 9.5 miles from the park's center, 5,750 ft. Second station lower down: Burney, CA, 3,198 ft, 29.5 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in December
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Redwood National Park | 54° / 38° | Quiet | Cool |
| Crater Lake National Park | 33° / 19° | Quiet | Cold |
| Point Reyes National Seashore | 55° / 44° | Busy | Mild, wet |
| Golden Gate National Recreation Area | 56° / 42° | Busy | Mild, wet |
| San Francisco Maritime National Historical Park | 58° / 47° | Moderate | Mild, wet |
Closures, reservations and alerts: Lassen Volcanic National Park on nps.gov
All twelve months at Lassen Volcanic · National parks to visit in December