Lassen Volcanic National Park
CAWEATHER INFO
Weather at Lassen can vary dramatically throughout the year. Average January temperatures are a high of 40.4 °F (4.7 °C) and a low of 20.8 °F (-6.2 °C). Average July temperatures are a high of 88.4 °F and a low of 49.8 °F. Temperatures reach 90 °F or higher on an average of 36.9 days, and drop to 32 ° or lower on an average of 164 days days annually.
Weather @ Lassen Volcaniclast updated: 2 hrDIRECTIONS INFO
INFORMATION
EV charging station unavailable
The Electric Vehicle charging station is non-functional. There is no timeline for when it may become available. Please plan accordingly.
morePARK CLOSURE
Bumpass Hell Trail Closed
The Bumpass Hell Trail is under a seasonal closure due to accumulated winter snow. This is an annual closure to prevent injury from treacherous trail conditions. The trail typically remains closed through mid-July. Learn more
moreINFORMATION
Lassen National Park Highway Open for the 2026 Season
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.
PARK CLOSURE
Road to Juniper Lake Closed for Repairs
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.
moreINFORMATION
Visitor Phone Line Intermittent
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.









