Glacier in January: Crowds, Weather & What to Pack

Shoulder · VisitWhen score 31/100 · #11 of 12 months

January is a solid shoulder-season month to visit Glacier National Park: crowds run 2% of the July peak (17,992 average visits), days average 32°F with 8.7 hours of daylight. Computed from NPS and NOAA data.

Access warning: Going-to-the-Sun Road's alpine section typically opens fully late June–early July and closes in mid-October; lower valleys stay accessible year-round. That typically affects January — verify before planning. Current NPS conditions →

Crowds in January

Glacier averages 17,992 recreation visits in January — 2% of what July, the peak month, draws — the second-quietest month of the year. Plan lodging and entries with that in mind — this is genuine quiet-season territory.

Average visits (January)

17,992 (mean 2021–2025, NPS)

Share of the year

0.6% of annual visitation

vs. peak (July)

Weather & daylight

Expect cold conditions (highs average 32°F), and nights are frigid (lows average 15°F). Average precipitation is 2.1″ for the month. Mid-month daylight runs 8.7 hours.

NOAA 1991–2020 monthly normals, station ST. MARY 1 SSW, MT US (17 mi from park coordinates, 4,555 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of January.

What to pack for Glacier in January

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

Insulated parka + thermal base layers — average lows of 15°F
Packable rain jacket — 2.1″ of precipitation is normal this month
Headlamp — only 8.7 hours of daylight in mid-January
Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
Bear spray — recommended by the park in grizzly country (check current park regulations before you carry)

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Looking for a better window? The computed best months for Glacier are June and September.

Also at their best in January

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

Channel Islands in January — 35% of peak crowds, highs 66°F, score 76/100
Zion in January — 23% of peak crowds, highs 54°F, score 76/100
Carlsbad Caverns in January — 38% of peak crowds, highs 56°F, score 73/100
Mammoth Cave in January — 15% of peak crowds, highs 48°F, score 70/100

Common questions

Is Glacier crowded in January?

No — January is one of the quieter months: 2% of the July peak, averaging 17,992 visits (NPS, 2021–2025).

What is the weather like in Glacier in January?

Average highs of 32°F, lows of 15°F, 2.1″ of precipitation (NOAA 1991–2020 normals, ST. MARY 1 SSW, MT US station).

What should I pack for Glacier in January?

Insulated parka + thermal base layers; Packable rain jacket; Headlamp — the full weather-computed list is on this page.

Is everything open at Glacier in January?

Going-to-the-Sun Road's alpine section typically opens fully late June–early July and closes in mid-October; lower valleys stay accessible year-round. Always check the park's live NPS alerts for current conditions.

See also: the best national parks to visit in January · Last verified 2026-09-12