The Least-Crowded Month at Every National Park

For each of the 63 US national parks, this is the quietest visitable month — the lowest crowd level (official NPS data, 2021–2025) among months that aren't harsh-season and where headline access is typically open.

Park	Quietest visitable month	vs peak	Avg visits
Gates of the Arctic National Park	April	0%	0
Kenai Fjords National Park	March	0%	69
Lake Clark National Park	March	0%	3
Voyageurs National Park	April	0%	157
Katmai National Park	May	1%	159
North Cascades National Park	November	1%	62
Isle Royale National Park	October	2%	210
Wrangell–St. Elias National Park	April	2%	520
Badlands National Park	December	4%	10,544
Glacier Bay National Park	April	6%	7,505
Great Sand Dunes National Park	January	6%	5,413
Theodore Roosevelt National Park	March	6%	9,332
Great Basin National Park	February	7%	1,907
Grand Teton National Park	November	7%	50,017
Mesa Verde National Park	January	7%	6,140
Capitol Reef National Park	January	8%	17,858
Shenandoah National Park	January	8%	24,259
Yellowstone National Park	April	8%	73,470
Acadia National Park	November	9%	72,629
Canyonlands National Park	January	9%	11,501
Wind Cave National Park	February	9%	11,211
Bryce Canyon National Park	January	10%	34,058
Crater Lake National Park	April	10%	16,857
Gateway Arch National Park	January	11%	51,776
New River Gorge National Park	January	13%	37,071
Olympic National Park	January	13%	81,950
Black Canyon of the Gunnison National Park	February	14%	7,018
Kings Canyon National Park	March	14%	16,338
National Park of American Samoa	June	14%	434
Rocky Mountain National Park	February	14%	111,660
Indiana Dunes National Park	January	15%	75,633
Mammoth Cave National Park	January	15%	15,220
Big Bend National Park	August	18%	16,691
Glacier National Park	October	18%	139,359
Arches National Park	January	19%	36,146
Mount Rainier National Park	May	20%	85,473
Yosemite National Park	January	21%	115,014
Saguaro National Park	July	23%	36,225
Zion National Park	January	23%	139,474
Redwood National Park	December	24%	22,579
Cuyahoga Valley National Park	January	26%	97,437
Denali National Park	May	28%	32,333
Guadalupe Mountains National Park	August	28%	9,934
Sequoia National Park	March	29%	57,038
Great Smoky Mountains National Park	February	30%	485,531
Grand Canyon National Park	January	32%	169,417
Joshua Tree National Park	July	33%	136,502
Petrified Forest National Park	February	33%	21,056
Virgin Islands National Park	September	34%	13,653
Channel Islands National Park	January	35%	12,484
Lassen Volcanic National Park	October	35%	37,677
Everglades National Park	October	37%	38,164
Hot Springs National Park	January	37%	127,539
Carlsbad Caverns National Park	January	38%	19,549
Kobuk Valley National Park	May	38%	678
White Sands National Park	February	42%	41,885
Congaree National Park	August	47%	13,657
Pinnacles National Park	September	51%	19,821
Death Valley National Park	October	55%	88,753
Dry Tortugas National Park	October	57%	4,965
Biscayne National Park	October	59%	36,611
Hawaiʻi Volcanoes National Park	April	73%	109,889
Haleakalā National Park	February	74%	60,634

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NPS Visitor Use Statistics, 2021–2025 monthly means. "Visitable" = not harsh-season by NOAA normals and headline access typically open. Methodology.

Last verified 2026-09-24

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