Perched high in the Cascade Mountains of southern Oregon, Crater Lake National Park is known for its deep blue water, dramatic cliffs, and—importantly—its highly seasonal weather. Because the park sits at over 6,000 feet (1,800 meters) elevation, conditions can vary dramatically throughout the year. Here’s a detailed month-by-month breakdown to help you plan your visit.
You can click the image below to view the full-size weather chart for Crater Lake National Park.
January
January is the heart of winter. Expect heavy snowfall, freezing temperatures, and limited access.
- Avg High: 30°F (-1°C)
- Avg Low: 18°F (-8°C)
- Highlights: Snowshoeing and cross-country skiing
- Note: Most roads, including Rim Drive, are closed
February
Conditions remain deeply wintry, with snow continuing to accumulate.
- Avg High: 32°F (0°C)
- Avg Low: 19°F (-7°C)
- Highlights: Quiet landscapes, ideal for winter solitude
- Note: Snow depth can exceed several meters
March
Winter lingers, though daylight increases and storms may begin to ease.
- Avg High: 36°F (2°C)
- Avg Low: 22°F (-6°C)
- Highlights: Late-season snow adventures
- Note: Still very limited accessibility
April
A transitional month—but still very snowy.
- Avg High: 42°F (6°C)
- Avg Low: 26°F (-3°C)
- Highlights: Fewer crowds, beautiful snowy vistas
- Note: Snow often continues to fall
May
Spring arrives slowly due to elevation.
- Avg High: 51°F (11°C)
- Avg Low: 31°F (-1°C)
- Highlights: Melting snow reveals early greenery
- Note: Many trails and roads remain closed
June
Early summer begins, but snow can still linger.
- Avg High: 60°F (16°C)
- Avg Low: 37°F (3°C)
- Highlights: Gradual reopening of park facilities
- Note: Rim Drive may still be partially closed
July
One of the best months to visit.
- Avg High: 69°F (21°C)
- Avg Low: 43°F (6°C)
- Highlights: Clear skies, full access to trails and roads
- Note: Peak tourist season
August
Warm, dry, and ideal for outdoor activities.
- Avg High: 69°F (21°C)
- Avg Low: 44°F (7°C)
- Highlights: Hiking, boat tours, and scenic drives
- Note: Occasional wildfire smoke may affect visibility
September
Early fall brings cooler temperatures and fewer crowds.
- Avg High: 63°F (17°C)
- Avg Low: 38°F (3°C)
- Highlights: Crisp air and stunning lake views
- Note: Weather can change quickly
October
Fall colors appear, but winter begins creeping back.
- Avg High: 53°F (12°C)
- Avg Low: 32°F (0°C)
- Highlights: Autumn scenery
- Note: First snowfall often occurs
November
Winter returns in force.
- Avg High: 40°F (4°C)
- Avg Low: 25°F (-4°C)
- Highlights: Snow-covered landscapes
- Note: Road closures begin again
December
Snowy, quiet, and magical.
- Avg High: 33°F (1°C)
- Avg Low: 20°F (-7°C)
- Highlights: Winter recreation and solitude
- Note: Heavy snowfall is common
Crater Lake National Park Weather by Month
| Month | Avg High (°F / °C) | Avg Low (°F / °C) | Rainfall (inches) | Snowfall (inches) |
|---|---|---|---|---|
| January | 30°F / -1°C | 18°F / -8°C | 5.5 | 98 |
| February | 32°F / 0°C | 19°F / -7°C | 4.7 | 83 |
| March | 36°F / 2°C | 22°F / -6°C | 4.3 | 70 |
| April | 42°F / 6°C | 26°F / -3°C | 3.2 | 39 |
| May | 51°F / 11°C | 31°F / -1°C | 2.2 | 14 |
| June | 60°F / 16°C | 37°F / 3°C | 1.4 | 3 |
| July | 69°F / 21°C | 43°F / 6°C | 0.5 | 0 |
| August | 69°F / 21°C | 44°F / 7°C | 0.7 | 0 |
| September | 63°F / 17°C | 38°F / 3°C | 1.5 | 1 |
| October | 53°F / 12°C | 32°F / 0°C | 3.0 | 11 |
| November | 40°F / 4°C | 25°F / -4°C | 5.9 | 57 |
| December | 33°F / 1°C | 20°F / -7°C | 6.4 | 92 |
Notes:
- Snowfall is extremely high due to elevation—Crater Lake averages over 500 inches annually.
- Summer (July–August) is very dry with virtually no snow.
- Rainfall peaks in late fall and winter, often falling as snow instead.
Best Time to Visit
- For full access & warm weather: July–September
- For snow activities: December–March
- For fewer crowds: May, June, or September
Key Takeaways
- Crater Lake is one of the snowiest inhabited places in the U.S.
- Summer is short but spectacular
- Winter dominates nearly half the year
20 frequently asked questions (FAQs) about weather at Crater Lake National Park
General Weather FAQs
- What is the weather like at Crater Lake National Park?
The park has a high-elevation climate with long, snowy winters and short, mild summers. - Why is Crater Lake so cold?
Its elevation (over 6,000 feet) keeps temperatures cooler year-round compared to nearby regions. - Does Crater Lake have extreme weather?
Yes, especially in winter, with heavy snowfall, strong winds, and freezing temperatures.
- How much snow does Crater Lake get annually?
It averages over 500 inches (12+ meters) of snow each year. - When does it start snowing at Crater Lake?
Snow can begin as early as October and continue into June. - What is the snowiest month at Crater Lake?
Typically January or February. - Is Crater Lake open in winter?
Yes, but access is limited, and many roads (like Rim Drive) are closed. - Can you visit Crater Lake in winter?
Yes, for snowshoeing, cross-country skiing, and winter photography.
- What is the best weather month to visit Crater Lake?
July and August offer the warmest temperatures and clear skies. - Does it snow in summer at Crater Lake?
Rarely, but snow can linger into early summer (June). - How warm does it get in summer?
Daytime highs usually reach around 65–70°F (18–21°C). - Is summer crowded at Crater Lake?
Yes, it’s peak tourist season due to ideal weather conditions.
- When is the rainy season at Crater Lake?
Late fall through early spring sees the most precipitation. - Does it rain a lot at Crater Lake?
Yes, but much of the precipitation falls as snow in colder months. - What is the driest month at Crater Lake?
July is typically the driest month.
- When is the best time to avoid crowds?
May, June, and September offer fewer visitors but variable weather. - Are roads always open at Crater Lake?
No, many roads close in winter due to snow. - How unpredictable is the weather?
Very—conditions can change rapidly, especially in spring and fall. - What should I pack for Crater Lake weather?
Layers, waterproof gear, and warm clothing—even in summer. - Is Crater Lake weather suitable for hiking year-round?
Best for hiking from July to September; winter hiking requires snow gear.