Crater Lake in May: Crowds, Weather & What to Pack
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May is one of the best months of the year to visit Crater Lake National Park: crowds run 22% of the July peak (36,245 average visits). Weather: highs average 49°F and lows 29°F, with 3.6″ of precipitation and 14.6 hours of daylight. Roads and services are only partly open this month — see the access note below. Computed from NPS and NOAA data.
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Bring for Crater Lake in May
- Insulated jacket, beanie and glovesSee it on AmazonWhy: nights average 29°F, below freezing.
- Rain shell + pack coverSee it on AmazonWhy: 3.6″ of precipitation is normal this month.
- Traction devices (microspikes) and gaitersSee it on AmazonWhy: 15″ normal snowfall.
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Crater Lake in May: what the park service says
May at Crater Lake is a transition month. The park service gives average highs of 50°F, lows of 28°F, about 20 inches of new snow, and more than 6 feet of snow on the ground at park headquarters. You can drive to Rim Village, but the lake is hidden by cloud about 20% of the time in May. Snowshoe rentals at the Rim Village Gift Shop usually run until late May.
Source: NPS, checked 2026-11-05.
Crowds in May
Crater Lake averages 36,245 recreation visits in May — 22% of what July, the peak month, draws. Plan lodging and entries with that in mind — crowds are thin by this park's standards.
Weather & daylight
Expect cool days (highs average 49°F), and nights drop below freezing (lows average 29°F). Average precipitation is 3.6″ for the month. Normal snowfall is 15″ — expect snow on the ground. Mid-month daylight runs 14.6 hours.
NOAA 1991–2020 monthly normals, station CRATER LAKE NPS HQ, OR US (1 mi from park coordinates, 6,485 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Crater Lake in May
Computed from the month's weather normals above — not a generic list.
- Insulated jacket, beanie and gloves — nights average 29°F, below freezing
- Rain shell + pack cover — 3.6″ of precipitation is normal this month
- Traction devices (microspikes) and gaiters — 15″ normal snowfall (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 15″ of snow is normal this month
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Also at their best in May
Other parks whose computed May verdict is a best window — same NPS × NOAA formula:
- Lake Clark in May — 7% of peak crowds, highs 59°F, score 96/100
- North Cascades in May — 11% of peak crowds, highs 69°F, score 96/100
- Katmai in May — 1% of peak crowds, highs 52°F, score 95/100
- Gates of the Arctic in May — 12% of peak crowds, highs 56°F, score 94/100
Common questions
Is Crater Lake crowded in May?
No — May is one of the quieter months: 22% of the July peak, averaging 36,245 visits (NPS, 2021–2025). See every month at Crater Lake.
What is the weather like in Crater Lake in May?
Average highs of 49°F, lows of 29°F, 3.6″ of precipitation (NOAA 1991–2020 normals, CRATER LAKE NPS HQ, OR US station). Compare it with other national parks in May.
What should I pack for Crater Lake in May?
Insulated jacket, beanie and gloves; Rain shell + pack cover; Traction devices (microspikes) and gaiters — the full weather-computed list is on this page. Going in June instead? Crater Lake in June has its own list.
Is everything open at Crater Lake in May?
Rim Drive and the north entrance are typically closed November–June; the south entrance and Rim Village stay open year-round for snow-season lake views. Always check the park's live NPS alerts for current conditions.
See also: the best national parks to visit in May · Last verified 2026-09-24