Indiana Dunes in December: Crowds, Weather & What to Pack
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December is a quiet month with trade-offs at Indiana Dunes National Park: crowds run 20% of the July peak (100,250 average visits). Weather: highs average 37°F and lows 24°F, with 2.3″ of precipitation and 9.2 hours of daylight. Computed from NPS and NOAA data.
Bring for Indiana Dunes in December
- Insulated jacket, beanie and glovesSee it on AmazonWhy: nights average 24°F, below freezing.
- Packable rain jacketSee it on AmazonWhy: 2.3″ of precipitation is normal this month.
- Traction devices (microspikes) and gaitersSee it on AmazonWhy: 7″ normal snowfall.
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Crowds in December
Indiana Dunes averages 100,250 recreation visits in December — 20% of what July, the peak month, draws — the third-quietest month of the year. Plan lodging and entries with that in mind — crowds are thin by this park's standards.
Weather & daylight
Expect cold conditions (highs average 37°F), and nights drop below freezing (lows average 24°F). Average precipitation is 2.3″ for the month. Normal snowfall is 7″ — expect snow on the ground. Mid-month daylight runs 9.2 hours.
NOAA 1991–2020 monthly normals, station INDIANA DUNES NL, IN US (1 mi from park coordinates, 680 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of December.
What to pack for Indiana Dunes 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
- Packable rain jacket — 2.3″ of precipitation is normal this month
- Traction devices (microspikes) and gaiters — 7″ normal snowfall (compare other options)
- Headlamp — only 9.2 hours of daylight in mid-December (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 7″ of snow is normal this month
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Looking for a better window? The computed best months for Indiana Dunes are March and April.
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
Is Indiana Dunes crowded in December?
No — December is one of the quieter months: 20% of the July peak, averaging 100,250 visits (NPS, 2021–2025).
What is the weather like in Indiana Dunes in December?
Average highs of 37°F, lows of 24°F, 2.3″ of precipitation (NOAA 1991–2020 normals, INDIANA DUNES NL, IN US station).
What should I pack for Indiana Dunes in December?
Insulated jacket, beanie and gloves; Packable rain jacket; Traction devices (microspikes) and gaiters — the full weather-computed list is on this page.
See also: the best national parks to visit in December · Last verified 2026-09-24