Lassen Volcanic National Park Climate and Average Weather
Climate of Lassen Volcanic National Park: average temperatures, rainfall and seasons month by month.
Climate in Lassen Volcanic National Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 38° | 22° | 4,6 in | ★☆☆☆☆ |
| February | 37° | 21° | 10,2 in | ★☆☆☆☆ |
| March | 41° | 25° | 5,9 in | ★★☆☆☆ |
| April | 46° | 27° | 3,3 in | ★★☆☆☆ |
| May | 56° | 34° | 1,6 in | ★★★★☆ |
| June | 71° | 47° | 0,7 in | ★★★★★ |
| July | 78° | 54° | 0,9 in | ★★★★★ |
| August | 75° | 51° | 0,9 in | ★★★★★ |
| September | 67° | 46° | 1,5 in | ★★★★☆ |
| October | 56° | 38° | 1,4 in | ★★★☆☆ |
| November | 43° | 27° | 6,7 in | ★☆☆☆☆ |
| December | 41° | 26° | 9,1 in | ★☆☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Recent extremes in Lassen Volcanic National Park
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Lassen Volcanic National Park compares with nearby places
Annual averages, and the difference against Lassen Volcanic National Park.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Mount Shasta | 75 mi | 16°F | 60°F cooler | 71 in |
| Reno | 108 mi | 54°F | +42°F warmer | 15 in |
| Lake Tahoe | 122 mi | 48°F | +36°F warmer | 26 in |
| Lake Tahoe | 122 mi | 48°F | +36°F warmer | 26 in |
| Nevada | 127 mi | 54°F | +42°F warmer | 15 in |
Best time to visit Lassen Volcanic National Park
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: February, November and December - expect the least comfortable mix of heat, cold or rain.
What this means for Lassen Volcanic National Park
Today is slightly cooler than average for August. The forecast high of 72°F is 3.2°F below the 75°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 69°F.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 62°F, so mornings feel nothing like afternoons
- If your dates are flexible, avoid February, November and December - historically the least comfortable months here.
Summary
Lassen Volcanic National Park is a national park in California. Lassen Volcanic National Park is a US national park known for hydrothermal basins and a plug dome volcano.
Right now it is 62°F (17°C) in Lassen Volcanic National Park with clear sky. It feels like 54°F. Today runs from 51°F to 72°F. Chance of precipitation is 1%. Sightseeing conditions score 9.6/10 - excellent - go now.
The best time to visit Lassen Volcanic National Park is June, July and August. The climate is subarctic. February, November and December tend to be the least comfortable months. July is the warmest month with average highs near 78°F, while February is the coldest with lows near 21°F.
The closest major airport is San Francisco International Airport (SFO), about 205 mi away. Nearby highlights include Mount Shasta, Lake Tahoe, Emerald Bay State Park and Redwood National and State Parks.
In plain terms. Today is slightly cooler than average for August. The forecast high of 72°F is 3.2°F below the 75°F typical for this month. The best window to be outside is roughly 5 PM to 8 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Lassen Volcanic National Park today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Lassen Volcanic National Park
| Type | National park |
|---|---|
| State | California |
| Country | United States |
| Continent | North America |
| Coordinates | 40°29′51.7″N 121°25′14.5″W (40.4977, -121.4207) |
| Established | 1916 |
| Known for | hydrothermal basins and a plug dome volcano |
| Local time | 10:26 AM (UTC-07:00) |
| Best months | June, July and August |
| Climate | Subarctic |
Weather map for Lassen Volcanic National Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Lassen Volcanic National Park
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Lassen Volcanic National Park?
Lassen Volcanic National Park is a national park in California. Its coordinates are 40.4977, -121.4207. It lies in North America.
What is the weather like in Lassen Volcanic National Park right now?
It is currently 62°F (17°C) with clear sky. Humidity is 17% and wind is 6 mph.
When is the best time to visit Lassen Volcanic National Park?
June, July and August offer the most comfortable conditions in Lassen Volcanic National Park, which has a subarctic climate. February, November and December are usually the hardest months for outdoor plans.
What time zone is Lassen Volcanic National Park in?
Lassen Volcanic National Park observes America/Los_Angeles (UTC-07:00). The local time is 10:26 AM.
What is the nearest airport to Lassen Volcanic National Park?
The closest airports are San Francisco International Airport (SFO), 205 mi away.
What are the top things to do in Lassen Volcanic National Park?
Popular options include Mount Shasta, Lake Tahoe, Emerald Bay State Park, Redwood National and State Parks, Crater Lake National Park and Crater Lake.
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| Place data | USPOTUS Atlas dataset (national-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 10:26 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
