... including targeted forecasts at the time of your arrival to each point!
The I-5 runs north-south about 50 miles west of Lassen Volcanic National Park.
Between the months of January and April the climate is very unfavorable. It is for example 13°C as maximum temperature in April and it rains in April about 134mm.
In the month of May the climate is just OK. The temperature rises to 17°C and it rains about 21% of the time in May.
Between June and August the climate is perfect. the thermometer goes up to 28°C°C and it rains about 25mm each month.
In september the climate is beautiful. At lunchtime, it's 25°C in average and it rains in September about 28mm.
In October the climate is just OK. The record temperature this month is 31°C and, in October, 3 days of rain are expected.
Between the months of November and December the climate is very bad. By early evening, the temperature averages -0°C and it rains about 28% of the time in December.
Since the entire park is located at medium to high elevations, the park generally has cool-cold winters and warm summers below 7,500 ft (2,286 m). Above this elevation, the climate is harsh and cold, with cool summer temperatures. Precipitation within the park is high to very high due to a lack of a rain shadow from the Coast Ranges. The park gets more precipitation than anywhere else in the Cascades south of the Three Sisters. Snowfall at the new visitor center near the southwest entrance at 6,700 ft (2,040 m) is around 430 in (1,090 cm) despite facing east. Up around Lake Helen, at 8,200 ft (2,499 m) the snowfall is around 600–700 in (1,520–1,780 cm), making it probably the snowiest place in California. In addition, Lake Helen gets more average snow accumulation than any other recording station located near a volcano in the Cascade range, with a maximum of 178 in (450 cm). Snowbanks persist year-round.
The park was established in 1916.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Lassen Volcanic National Park.