Great Basin in May: Crowds, Weather & What to Pack
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May is one of the best months of the year to visit Great Basin National Park: crowds run 58% of the July peak (15,173 average visits), days average 64°F with 14.3 hours of daylight. Computed from NPS and NOAA data.
Crowds in May
Great Basin averages 15,173 recreation visits in May — 58% of what July, the peak month, draws. Plan lodging and entries with that in mind.
Weather & daylight
Daytime temperatures are comfortable (highs average 64°F), and mornings are chilly (lows average 40°F). It is typically dry (1.3″ of precipitation). Mid-month daylight runs 14.3 hours.
NOAA 1991–2020 monthly normals, station GREAT BASIN NP, NV US (0 mi from park coordinates, 6,850 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Great Basin in May
Computed from the month's weather normals above — not a generic list.
- Warm mid-layer (fleece or light puffy) — mornings average 40°F
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every 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 Great Basin crowded in May?
Moderately: May runs 58% of the July peak, averaging 15,173 visits (NPS, 2021–2025).
What is the weather like in Great Basin in May?
Average highs of 64°F, lows of 40°F, 1.3″ of precipitation (NOAA 1991–2020 normals, GREAT BASIN NP, NV US station).
What should I pack for Great Basin in May?
Warm mid-layer (fleece or light puffy); Sturdy broken-in footwear, navigation and a basic first-aid kit — the full weather-computed list is on this page.
See also: the best national parks to visit in May · Last verified 2026-09-12