Weather information for the Lassen Volcanic NP area is provided below. Average temperatures, climate details and current forecasts are included!
Climate
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
| Avg. High | 42 | 46 | 51 | 59 | 68 | 76 | 84 | 84 | 77 | 66 | 50 | 42 | |
| Avg. Low | 20 | 23 | 26 | 29 | 35 | 42 | 46 | 44 | 39 | 32 | 26 | 21 | |
| Precipitation | 5.9 | 5.6 | 4.9 | 2.0 | 1.6 | 0.8 | 0.4 | 0.4 | 0.9 | 2.0 | 3.8 | 4.6 | |
Overnight
Scattered Rain Showers
Tuesday
Chance Showers And Thunderstorms
Tuesday Night
Chance Showers And Thunderstorms then Partly Cloudy
Wednesday
Sunny
Wednesday Night
Mostly Clear
Thursday
Sunny
Detailed Forecast |
|
|---|---|
| Overnight | Scattered rain showers. Partly cloudy, with a low around 32. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday | Scattered rain showers before 11am, then a chance of showers and thunderstorms. Partly sunny. High near 52, with temperatures falling to around 47 in the afternoon. East wind 5 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Tuesday Night | A chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 29. North northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Wednesday | Sunny, with a high near 56. Northeast wind around 10 mph. |
| Wednesday Night | Mostly clear, with a low around 28. Northeast wind 3 to 10 mph. |
| Thursday | Sunny, with a high near 59. |
| Thursday Night | Mostly clear, with a low around 31. |
| Friday | Sunny, with a high near 60. |
| Friday Night | Mostly cloudy, with a low around 31. |
| Saturday | A chance of rain and snow showers after 11am. Mostly cloudy, with a high near 50. |
| Saturday Night | Rain and snow showers likely. Mostly cloudy, with a low around 28. New snow accumulation of 2 to 4 inches possible. |
| Sunday | Snow showers likely. Mostly cloudy, with a high near 41. New snow accumulation of 8 to 12 inches possible. |
| Sunday Night | Snow showers likely. Mostly cloudy, with a low around 24. New snow accumulation of 5 to 9 inches possible. |
| Monday | Snow showers likely. Mostly cloudy, with a high near 41. New snow accumulation of 2 to 4 inches possible. |
