Arches in December: Crowds, Weather & What to Pack

Shoulder · VisitWhen score 63/100 · #8 of 12 months

December is a quiet month with trade-offs at Arches National Park: crowds run 25% of the May peak (48,970 average visits). Weather: highs average 42°F and lows 24°F, with 0.6″ of precipitation and 9.5 hours of daylight. Computed from NPS and NOAA data.

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Crowds in December

Arches averages 48,970 recreation visits in December — 25% of what May, the peak month, draws — the second-quietest month of the year. Trailheads and parking fill accordingly — crowds are thin by this park's standards.

Weather & daylight

Days are cold (highs average 42°F), and nights drop below freezing (lows average 24°F). It is typically dry (0.6″ of precipitation). Mid-month daylight runs 9.5 hours.

NOAA 1991–2020 monthly normals, station ARCHES NP HQS, UT US (9 mi from park coordinates, 4,093 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of December.

What to pack for Arches in December

Computed from the month's weather normals above — not a generic list.

• Insulated jacket, beanie and gloves — nights average 24°F, below freezing
• Headlamp — only 9.5 hours of daylight in mid-December (compare other options)
• Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month

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If your dates are flexible, consider shifting: The computed best months for Arches are February and March.

Also at their best in December

Other parks whose computed December verdict is a best window — same NPS × NOAA formula:

• American Samoa in December — 17% of peak crowds, highs 88°F, score 66/100
• Everglades in December — 72% of peak crowds, highs 80°F, score 64/100
• Biscayne in December — 77% of peak crowds, highs 80°F, score 62/100

Common questions

See also: the best national parks to visit in December · Last verified 2026-09-24