Matanuska Glacier in January

The coldest month, and the calmest ice

January is the heart of winter at the Matanuska. The park at Mile 102 of the Glenn Highway runs its winter season from 15 November to 14 April, and by January the glacier has been frozen solid for weeks. There is snow over the flats, the meltwater channels have locked up, and the guided routes have settled into their winter pattern.

That makes January a straightforward month to plan in one way and a demanding one in another. The ice is stable and quiet, and the blue shows best in the walls of crevasses and caves. But it is the coldest month of the year, the day is short, and what you wear decides whether you enjoy it.

The weather, with numbers

No official climate averages exist for the glacier itself, so the nearest figures come from the NOAA stations in Anchorage and Palmer. In January, Anchorage averages a high of 22.7°F (−5.2°C) and a low of 11°F (−11.7°C), with about 12.4 inches (31 cm) of snow over the month. Palmer is a touch colder at night, with an average low of 8.3°F (−13.2°C). The glacier sits higher up the valley than both, so expect colder air on the ice than in town.

Wind makes the difference. The Matanuska wind is a strong, gusty north-easterly that blows down the valley near Palmer in winter, and it can turn a still, cold day into a bitter one. The reverse happens too: a Knik wind from the south-east can bring a sudden warm spell. Neither is predictable weeks ahead, so pack for the cold end of the range. To give a sense of the extremes, one January storm in 2018 brought gusts of up to 60 mph to the Matanuska Valley and wind chills near −40°F. That was a single event, not a typical day, but it explains why the operators’ packing lists ask for a face cover.

Six hours of daylight

On 15 January the sun rises over Anchorage at 9:56am and sets at 4:22pm, about six and a half hours of light. The days are lengthening again after the December solstice, by around four minutes a day, but slowly.

For a full-day tour this means part of the drive happens in the dark or in twilight, and the time on the ice falls in the brightest hours. That suits the glacier well: the low winter sun lights the ice from the side, and a grey sky shows the blue better than harsh sun does. If a long, bright day matters to you, March gives you nearly twice the light on the same frozen ice.

Which tours to book in January

In January, the tour you pick matters most for what it hands you to wear. NOVA’s glacier-side walks are summer-only, so the options are the full days from Anchorage and the park’s own tours at the gate.

Anchorage: Matanuska Glacier Hike with Transfers is our pick for this month. Alaska Horizon Adventure collects you from your hotel or Airbnb in Anchorage, the glacier admission is included, and gloves and snow pants are handed out at the ice along with the safety gear. For anyone who has flown in without proper cold-weather clothing, that covers the most important gaps. It runs about eight hours and holds 4.8 out of 5 from 36 reviews. Bring your own warm jacket and base layers; the supplied kit is the outer layer, not the whole outfit.

From Anchorage: Matanuska Glacier Winter Tour with Lunch is the one to choose if a hot meal matters. Greatland Adventures includes lunch, snacks and water, and the day ends with a meal at a local eatery, which feels very welcome after hours in the cold. It is rated 5.0 from 16 reviews. Warm clothing is not included, but the operator rents a full package of parka, snow pants, boots, hat and gloves for $30 on the day, and in January you will want it.

For a lodge lunch with the winter clothing supplied, this Viator listing covers both:

From Anchorage: Matanuska Glacier Full-Day Tour from 907 Tours is the longest day, at about ten hours. It is the listing that describes the winter sled ride out to the ice. You bring your own winter kit.

If you have a car and are confident on winter roads, the park’s own operator at Mile 102 runs guided tours daily at 10am, 11am, 1pm and 2pm, at about $150 per adult with the gate fee included. Its pages quote slightly different prices, so confirm before you drive, and read our winter driving comparison first.

What January gives you on the ice

The sled ride. In the winter season the park uses snow machines to tow visitors in a sled across the flats to the face of the glacier whenever conditions allow. A guide drives the snow machine and you ride as a passenger. After that you are on foot, on groomed, flat ice paths, for about two hours. Our sled tours guide explains how it works.

Ice caves, when they are safe. The park’s operator says caves are really only accessible in winter, once the meltwater has frozen. They form and collapse on their own schedule, so no tour can promise one, but January is in the right season. The ice caves guide covers what to expect.

Quiet. The glacier is the most accessible in the state and draws crowds in summer. In January you often share the ice with only your own group.

The trade-offs

It is genuinely cold, and wind can make it feel much colder. Short days mean the drive is part of the dark hours. Services along the road are thin: Sheep Mountain Lodge’s restaurant closes in mid-September and does not reopen until May, so food comes from your tour or from Palmer.

Northern lights in January

January falls well inside the aurora season, which Visit Anchorage gives as September to April, and the long nights help. The catch is that you need a clear sky away from city lights, and a day tour has you back in Anchorage by late afternoon or early evening. Seeing the aurora means a separate evening outing or a night up the valley. No one can promise a display.

What to pack for January

Everything warm you own, in layers: a thermal base, an insulated mid-layer, a windproof and waterproof shell, insulated snow pants, a warm hat, a face cover such as a neck gaiter or balaclava, insulated gloves or mittens, wool socks and waterproof winter boots. Add sunglasses for the glare off the snow. Our what to wear guide has the full list.

When you have picked a date, check January availability.