Weather information for the Lassen Volcanic NP area is provided below. Average temperatures, climate details and current forecasts are included!
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We also have the following visitor guides in California. Click on any additional guides you would like to receive.
Temecula Valley Southern California Wine Country
Lake Havasu City Western Arizona
Lake Havasu City
Visalia Sequoia and King's Canyon National Parks
Costa Mesa Southern California
Oceanside Southern California
Visit Buena Park Southern California
Visit Buena Park
Santa Rosa Sonoma County
Catalina Island Southern California
Vallejo Bay Area
We also have visitor guides available in states highlighted in blue below. Click on any state to see what's available.
- New Mexico
Lassen National Park is very much an alpine park and the weather reflects this. Below 7,500 feet elevation, the summers are mildly warm and the winters are cool to cold. Rise above this elevation and the winters become harsh and the summers cool. Precipitation in Lassen is quite high - in fact, the area around the park's Lake Helen is possibly the snowiest place in California.