Travel

Temperatures In These Two Parks Are Over 120 Degrees In Summer

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24/7 Wall St. Insight

  • Some national parks get very hot in the summer, so much so that travelers should be aware
  • The hottest park in Death Valley National Park

Although summer is just about over and the next vacation may be months away, September might actually be a better time to visit some national parks. Not only are the crowds thinner but the weather in many may be more pleasant. In fact, it could also be safer as this summer there have been several heat-related deaths and injuries in national parks.

To determine the hottest national parks, 24/7 Wall St. reviewed census tract level data on land surface temperature from the USGS Landsat program. National parks were ranked based on average surface level temperature in July and August. Temperature data was aggregated from census tracts to national parks using boundary data from the U.S. Census Bureau and National Park Service. Supplemental data on the number of annual visitors in 2023 is also from the NPS.

While the parks on the list span the country, the 10 hottest parks, where average summer temperatures can reach over 110 degrees Fahrenheit, are in just five states. Three of the hottest 10 are in Arizona, including the Petrified Forest National Park, two each are in New Mexico, California, and Texas, and one is in Utah. The hottest, not surprisingly is the aptly named Death Valley National Park, where temperatures reach 123.7 F. (Also see, This Most Expensive National Park Offers Unforgettable Experiences.)

Why are we covering this

A hot wave, also known as a heatwave, occurs when temperatures soar significantly above the average for a prolonged period, often leading to health risks, power outages, and increased wildfire hazards
simon jhuan / Shutterstock.com
Most Americans take vacations when the children are on holidays in the summer. But that is also when temperatures are highest in most places. This list shows what to expect when it comes to national parks.

40. Voyageurs National Park

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  • Average summer land surface temperature: 74.6°F
  • Annual visitors, 2023: 220,825
  • Park area: 319.9 square miles
  • Region: Northeast Minnesota

39. Glacier National Park

  • Average summer land surface temperature: 75.8°F
  • Annual visitors, 2023: 2,933,616
  • Park area: 1,575.2 square miles
  • Region: Western Montana

38. Grand Teton National Park

benedek / E+ via Getty Images
  • Average summer land surface temperature: 80.7°F
  • Annual visitors, 2023: 3,417,106
  • Park area: 484.4 square miles
  • Region: Wyoming Snake Drainage

37. Shenandoah National Park

  • Average summer land surface temperature: 81.3°F
  • Annual visitors, 2023: 1,576,008
  • Park area: 308.7 square miles
  • Region: Northern Virginia

36. Cuyahoga Valley National Park

Jon Lauriat / iStock via Getty Images
  • Average summer land surface temperature: 81.9°F
  • Annual visitors, 2023: 2,860,059
  • Park area: 51.2 square miles
  • Region: Northeast Ohio

35. Mammoth Cave National Park

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  • Average summer land surface temperature: 82.8°F
  • Annual visitors, 2023: 654,450
  • Park area: 111.8 square miles
  • Region: Central Kentucky

34. Dry Tortugas National Park

  • Average summer land surface temperature: 83.1°F
  • Annual visitors, 2023: 84,285
  • Park area: 102.5 square miles
  • Region: Florida Keys

33. Indiana Dunes National Park

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  • Average summer land surface temperature: 83.8°F
  • Annual visitors, 2023: 2,765,892
  • Park area: 25.4 square miles
  • Region: Northwest Indiana

32. Yellowstone National Park

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  • Average summer land surface temperature: 85.0°F
  • Annual visitors, 2023: 2,295,705
  • Park area: 3,436.6 square miles
  • Region: Wyoming Yellowstone Drainage

31. Biscayne National Park

jtstewartphoto / iStock via Getty Images
  • Average summer land surface temperature: 86.7°F
  • Annual visitors, 2023: 571,242
  • Park area: 271.6 square miles
  • Region: Florida Lower East Coast

30. Everglades National Park

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  • Average summer land surface temperature: 86.8°F
  • Annual visitors, 2023: 810,189
  • Park area: 2,393.4 square miles
  • Region: Florida Everglades

29. Congaree National Park

Hans Harms / iStock via Getty Images
  • Average summer land surface temperature: 86.9°F
  • Annual visitors, 2023: 250,114
  • Park area: 41.8 square miles
  • Region: Central South Carolina

28. Hot Springs National Park

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  • Average summer land surface temperature: 88.9°F
  • Annual visitors, 2023: 2,502,967
  • Park area: 8.5 square miles
  • Region: Central Arkansas

27. Mesa Verde National Park

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  • Average summer land surface temperature: 90.3°F
  • Annual visitors, 2023: 505,194
  • Park area: 83.9 square miles
  • Region: Colorado Colorado Drainage Basin

26. Crater Lake National Park

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  • Average summer land surface temperature: 90.9°F
  • Annual visitors, 2023: 559,976
  • Park area: 285.2 square miles
  • Region: Oregon High Plateau

25. Kings Canyon National Park

  • Average summer land surface temperature: 91.3°F
  • Annual visitors, 2023: 643,065
  • Park area: 717.1 square miles
  • Region: California San Joaquin Drainage

24. Channel Islands National Park

benedek / iStock via Getty Images
  • Average summer land surface temperature: 92.1°F
  • Annual visitors, 2023: 328,746
  • Park area: 383.9 square miles
  • Region: California South Coast Drainage

23. Sequoia National Park

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  • Average summer land surface temperature: 95.4°F
  • Annual visitors, 2023: 980,567
  • Park area: 635.6 square miles
  • Region: California San Joaquin Drainage

22. Lassen Volcanic National Park

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  • Average summer land surface temperature: 96.9°F
  • Annual visitors, 2023: 418,978
  • Park area: 168.0 square miles
  • Region: California Sacramento Drainage

21. Theodore Roosevelt National Park

  • Average summer land surface temperature: 97.5°F
  • Annual visitors, 2023: 746,862
  • Park area: 110.1 square miles
  • Region: Southwest North Dakota

20. Gateway Arch National Park

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  • Average summer land surface temperature: 98.1°F
  • Annual visitors, 2023: 2,422,836
  • Park area: 0.3 square miles
  • Region: Southwest Illinois

19. Great Sand Dunes National Park

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  • Average summer land surface temperature: 98.1°F
  • Annual visitors, 2023: 512,219
  • Park area: 168.1 square miles
  • Region: Colorado Rio Grande Drainage Basin

18. Black Canyon of the Gunnison National Park

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  • Average summer land surface temperature: 99.2°F
  • Annual visitors, 2023: 357,069
  • Park area: 48.8 square miles
  • Region: Colorado Colorado Drainage Basin

17. Wind Cave National Park

Mark Newman / The Image Bank via Getty Images
  • Average summer land surface temperature: 99.7°F
  • Annual visitors, 2023: 592,459
  • Park area: 53.0 square miles
  • Region: South Dakota Black Hills

16. Badlands National Park

  • Average summer land surface temperature: 106.0°F
  • Annual visitors, 2023: 1,046,400
  • Park area: 379.4 square miles
  • Region: Southwest South Dakota

15. Bryce Canyon National Park

JimVallee / iStock via Getty Images
  • Average summer land surface temperature: 106.4°F
  • Annual visitors, 2023: 2,461,269
  • Park area: 56.2 square miles
  • Region: South Central Utah

14. Zion National Park

  • Average summer land surface temperature: 107.2°F
  • Annual visitors, 2023: 4,623,238
  • Park area: 232.4 square miles
  • Region: South Central Utah

13. Great Basin National Park

  • Average summer land surface temperature: 108.8°F
  • Annual visitors, 2023: 143,265
  • Park area: 120.3 square miles
  • Region: Northeastern Nevada

12. Capitol Reef National Park

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  • Average summer land surface temperature: 109.3°F
  • Annual visitors, 2023: 1,268,861
  • Park area: 382.5 square miles
  • Region: Southeast Utah

11. Canyonlands National Park

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  • Average summer land surface temperature: 110.6°F
  • Annual visitors, 2023: 800,322
  • Park area: 522.3 square miles
  • Region: Southeast Utah

10. Saguaro National Park

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  • Average summer land surface temperature: 111.2°F
  • Annual visitors, 2023: 1,010,906
  • Park area: 146.2 square miles
  • Region: Southeast Arizona

9. Grand Canyon National Park

  • Average summer land surface temperature: 111.5°F
  • Annual visitors, 2023: 4,733,705
  • Park area: 1,880.1 square miles
  • Region: Northeast Arizona

8. Arches National Park

  • Average summer land surface temperature: 112.4°F
  • Annual visitors, 2023: 1,482,045
  • Park area: 119.5 square miles
  • Region: Southeast Utah

7. Carlsbad Caverns National Park

elan7t50 / iStock via Getty Images
  • Average summer land surface temperature: 113.0°F
  • Annual visitors, 2023: 394,121
  • Park area: 73.1 square miles
  • Region: New Mexico Southeastern Plains

6. Pinnacles National Park

NickLustPhotography / iStock via Getty Images
  • Average summer land surface temperature: 113.2°F
  • Annual visitors, 2023: 341,220
  • Park area: 41.7 square miles
  • Region: California Central Coast Drainage

5. Big Bend National Park

  • Average summer land surface temperature: 114.0°F
  • Annual visitors, 2023: 509,129
  • Park area: 1,267.0 square miles
  • Region: Texas Trans Pecos

4. Guadalupe Mountains National Park

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  • Average summer land surface temperature: 115.8°F
  • Annual visitors, 2023: 227,340
  • Park area: 136.3 square miles
  • Region: Texas Trans Pecos

3. Petrified Forest National Park

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  • Average summer land surface temperature: 119.2°F
  • Annual visitors, 2023: 520,491
  • Park area: 348.4 square miles
  • Region: Northeast Arizona

2. White Sands National Park

YayaErnst / iStock via Getty Images
  • Average summer land surface temperature: 120.3°F
  • Annual visitors, 2023: 729,096
  • Park area: 231.6 square miles
  • Region: New Mexico Southern Desert

1. Death Valley National Park

  • Average summer land surface temperature: 123.7°F
  • Annual visitors, 2023: 1,099,589
  • Park area: 5,367.1 square miles
  • Region: California Southeast Desert Basin

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