
National Park · CA
Lassen Volcanic is quietest in January and February and busiest in July.
Lassen Volcanic National Park is home to steaming fumaroles, meadows freckled with wildflowers, clear mountain lakes, and numerous volcanoes. Jagged peaks tell the story of its eruptive past while hot water continues to shape the land.
427K recreation visits a year on average (2023–2025)
Data: NPS visitation 2023–2025 · crowd scores computed Jul 2026 · alerts checked Jul 10, 2026. How this is calculated →
Computed from federal data · Methodology by Sharon Ben-Moshe
This week
| Day | Conditions | High | Low | Precip chance |
|---|---|---|---|---|
| Thu 27 | Overcast | 72°F | 49°F | 1% |
| Fri 28 | Drizzle | 66°F | 45°F | 8% |
| Sat 29 | Overcast | 67°F | 42°F | 5% |
| Sun 30 | Clear | 72°F | 41°F | 0% |
| Mon 31 | Overcast | 67°F | 42°F | 0% |
| Tue 1 | Overcast | 61°F | 38°F | 2% |
| Wed 2 | Overcast | 64°F | 38°F | 9% |
Forecast data by Open-Meteo
Source: Open-Meteo
Weather
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| January | 41°F | 22°F | 6.5" |
| February | 42°F | 22°F | 5.5" |
| March | 46°F | 24°F | 6.4" |
| April | 50°F | 28°F | 4.3" |
| May | 61°F | 35°F | 2.9" |
| June | 70°F | 41°F | 1.3" |
| July | 79°F | 46°F | 0.3" |
| August | 78°F | 45°F | 0.3" |
| September | 72°F | 41°F | 0.7" |
| October | 59°F | 33°F | 2.7" |
| November | 47°F | 26°F | 4.7" |
| December | 40°F | 22°F | 6.5" |
Source: NOAA 1991–2020 climate normals, MANZANITA LAKE, CA US
Know before you go
Source: NPS Data API
Conditions
You may experience problems reaching park staff via the main visitor phone line which functions intermittently. You may email the park at lavo_information@nps.gov with general park questions.
Road to Juniper Lake is closed to vehicle access due to needed repairs. Road leading to Juniper Lake sustained significant damage outside of the park with no ETA for repair.
Details on nps.gov →The Lassen National Park Highway (Hwy. 89, 30 miles through the park) opened to through traffic on May 22, 2026. Google maps and other third-party sites may be indicating the road is closed. This does not reflect accurate information.
The Electric Vehicle charging station is non-functional. There is no timeline for when it may become available. Please plan accordingly.
Details on nps.gov →Use caution hiking over snow-covered sections on the Lassen Peak trail. Hikers are encouraged to use trekking poles and wear deep-tread hiking boots. Wearing boot spikes will add additional stability over snow-covered sections.
Source: NPS Data API
FAQ
Lassen Volcanic is least crowded in January, February, and March. July is the busiest month, so visiting outside it means thinner crowds and easier parking.
Entrance to Lassen Volcanic costs $30 (Admits one private, non-commercial vehicle. Valid for up to 7 consecutive days from day of purchase at Lassen Volcanic National Park. When entrance station is not staffed, digital passes may be purchased online at recreation.gov.).
Lassen Volcanic is busiest in July, when crowds rate 10/10 (peak). Expect full parking lots and longer waits; arrive early or choose a quieter month.