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Alaska and NW Canada Cold Snap Review

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Alaska and NW Canada Cold Snap Review


Most of December and the first two weeks of January were very cold in most of Alaska and northwest Canada. I posted about the cold in the first half of December here, the cold snap through Christmas here, December overall for Alaska here and Arctic context for the cold snap in the December climate review here.

This post serves as an event recap, though because of the breath and duration of event this review is necessarily selective. Also I have only limited tools to assess the historical context of this event in northwest Canada, so I’ve surely missed some important highlights. Because this event was international scope, I provide temperature information in both degrees F and degrees C. This makes the post longer, but I hope it’s relevant whatever your preferred temperature scale.

The 2025-26 cold snap was distinguished primarily by the long duration of the very cold weather rather than daily extremes. Based on ERA5 Land reanalysis, for Alaska overall, every day but two between December 4 and January 15 was colder than the 1991-2020 baseline average (Fig. 1 top), making this the most significant prolonged cold snap since 2012 (which was colder). For the Yukon Territory, every day between December 5 and January 9 was colder than average (Fig. 1 bottom).

Fig. 1 Daily average temperature difference from the 1991-2020 baseline average December 4, 2025 to January 20, 2026 for Alaska (top) and the Yukon Territory (bottom). Data from ERA5 Land courtesy of ECMWF/Copernicus

The coldest period for northwest North America overall was December 5 to January 15 (Fig. 2). The departures are quite markable given this is a seven week period.

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Fig. 2 Average temperature departure from 1991-2020 baseline average for the seven weeks December 5, 2025 to January 15, 2026. For Alaska and the Yukon Territory overall, this was the coldest 42 day period during this cold snap. Data from ERA5 Land courtesy of ECMWF/Copernicus.

For the Yukon Territory overall the coldest day was December 22, with temperatures south of 65°N widely 20°C or more below normal (Fig. 3). The very low temperatures extended into the eastern Interior, but Alaska west of about 160°W was notably warmer than normal.

Fig. 3 December 22, 2025 average temperature difference from the smoothed 1991-2020 average, degrees F (top) and degrees C (bottom). Data from ERA5 Land courtesy of ECMWF/Copernicus.

The coldest day from the central Yukon Territory westward into eastern and central Interior Alaska was January 4th (Fig. 4). Temperatures in southern YT were not quite as low as around winter solstice. With above normal temperatures across the Alaska Peninsula this wasn’t quite coldest day for Alaska overall.

Fig. 4 January 4, 2026 average temperature difference from the smoothed 1991-2020 average, degrees F (top) and degrees C (bottom). Data from ERA5 Land courtesy of ECMWF/Copernicus.

The coldest day for Alaska overall was January 8, anchored by the deep cold over southwest mainland but temperatures widely 15°F (9°C) or more below normal over mainland Alaska (Fig. 5). At this point temperatures had moderated considerably in the Yukon Territory and Southeast Alaska.

Fig. 5 January 8, 2026 average temperature difference from the smoothed 1991-2020 average, degrees F (top) and degrees C (bottom). Data from ERA5 Land courtesy of ECMWF/Copernicus.

The lowest temperatures recorded during December and January (Fig. 6) were notable, though not to record levels across Interior Alaska and the Yukon Territory. Both Tok and Chicken, Alaska, with lows of -63F (-52.8C), recorded the lowest temperatures at their respective locations since January 2009. Fairbanks’ and Tanana’s lowest temperature was the same as the low in 2024, and Bettles had a lower temperature last winter. Carmacks, YT reported the lowest temperature since 1996 but Whitehorse, Dawson, Beaver Creek and Pelly Crossing all had the lowest temperature only since 2022.

Fig. 6 plot of site specific lowest temperature reported in December 2025 and January 2026 in degrees F (top) and degrees C (bottom).

Beyond the Yukon and Interior Alaska there were a few daily records and other short term extremes during this cold snap.

Juneau airport low temperature of -10F (-23.3C) on December 22 and 23 were daily record lows and also the lowest temperature there since 1995.

In Southcentral Alaska there were a scattering of daily record lows the first and second weeks of January. Talkeetna set a daily record of -38F (-38.9C) on January 8. This is the first daily record low to be set in January since 1975. Also notable was the exceptionally cold January 3rd at Portage Glacier Visitor Center southeast of Girdwood. Calm winds and clear skies allowed the temperature to stay low all day, with a high temperature of -22F (-30.0C) and a low of -30F (-34.9C) the coldest day at this location since the observation site was established in 1998, though January 1989 probably had at least one day as cold or colder. Kenai’s low temperature of -36F (-37.8C) on January 8 wasn’t a daily record but it was the lowest temperature there since 1999.

In Southwest Alaska, King Salmon set daily record lows on two days and Bethel on one day.

The duration of cold snap is illustrated in these site-specific highlights:

  • Fairbanks Airport:

    • 21 days with lows of -40F/C or lower, all between December 14 and January 13, the most since the winter of 1970-71

    • 57 hours with dense ice fog (visibility one-quarter mile or lower), the most since the winter of 2008-09

    • 30-day average temperature -31.0F (-35.0C) December 15 to January 13, the lowest since 1970-71

  • Tok: 22 days with lows of -50F (-45.6C) or lower, all between December 8 and January 6

  • Chicken: 29 days with lows of -40F/C or lower, all between December 6 and January 10

Notable “consecutive days” streaks include:

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  • Fairbanks Airport:

    • 32 straight days high temperature 0F (-17.8C) or lower (December 14 to January 14), second longest on record

    • 43 straight days with daily low temperature -10F (-23.3C) or lower (December 4 to January 15), second longest on record

  • Tanana:

  • Eagle (cooperative station):

    • 42 straight days with daily high temperature 0F (-17.8C) or lower, (December 5 to January 15), longest on record

  • Northway:

  • Anchorage:

  • Dawson, YT: 19 straight days with lows -40F/C or lower, longest since 1996

The daily temperature ranges are shown at Fairbanks and Tok (Fig. 7). Fairbanks, the westernmost location shown, had two notable moderating events in December, both associated with pulses of warmer air aloft moving from the Bering Sea into the central Interior and both produced significant snowfall. The first of these made as far east as Tok. Also notable at all these valley locations are a number of very cold days with only a few degrees spread between the high and low temperature. These days were clear (excepting local ice fog) and calm and vividly illustrates that although the sun scraps above the horizon for a few hours, in December and early January this provides no significant solar heating poleward of 60°N.

Fig. 7 daily low to high temperature (blue bars) and 1991-2020 normal (gray band) between December 4, 2025 to January 15, 2026 at Fairbanks (top) and Tok (bottom). Data courtesy NOAA.NWS and NCEI.

The cold was particularly unrelenting at Dawson, YT in December (Fig. 8, top), although the coldest day occurred on January 4. At Whitehorse (Fig. 8, bottom), there we two distinct episodes of deep cold, one in early December and another around winter solstice.

Fig. 8 daily low to high temperature (blue bars) and 1991-2020 normal (gray band) between December 4, 2025 to January 15, 2026 at Dawson (top) and Whitehorse (bottom). Data courtesy Environment and Climate Change Canada.

An historical perspective on this cold snap at Fairbanks is shown in the times series plotting the coldest 10-day periods each winter since the early 1900s (Fig. 9). By this measure, this cold snap was slightly colder than 2011-12 and not quite as cold as 1988-89. However, about a dozen winters prior to 1980 had a 10-day period colder than this event.

Fig. 9 Fairbanks lowest 10-day average temperature each winter 1905-06 to 2025-26. A few winters are missing prior to 1916 due to excessive missing data. Data courtesy NOAA/NCEI and NWS.

The mid-atmospheric flow pattern and its slow evolution in December and January explains a lot of what happened on the ground. During the second half of December (Fig. 10, left) extremely strong high pressure aloft over the Bering Sea supported high pressure at the surface over eastern Interior Alaska and the Yukon. Because of the lack of solar heating, clear skies allowed continuous escape of heat from the top of the snowpack to outer space, with the cold air pooling in valleys. In early January (Fig 10, right) the pattern changed, with a general westward shift of the high and low pressure centers aloft compared to December. For example, the the Being high pressure shifted northwest to be near the Sea Of Okhotsk, while the low pressure over central Arctic Canada in December shifted west to be over the Beaufort Sea in early January. This westward “retrogression”, so-called because it’s in contrast to the more usual west-to-east progression of mid-latitude weather features near ground, is a common feature of the mid-atmosphere flow pattern during the cold season.

Fig. 10 Average 500 hPa heights and departures from 1991-2020 baseline for the second half of December (left) and the first half January (right). Data from the NCAR/NCEP R1 reanalysis data courtesy NOAA/ESRL.



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Dunleavy, EPA visit UAF to discuss regulations in the arctic environment

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Dunleavy, EPA visit UAF to discuss regulations in the arctic environment


Fairbanks, Alaska (KTUU/KTVF) – On Wednesday, Gov. Mike Dunleavy, Alaska Attorney General Stephen Cox and Lee Zeldin, the administrator for the Environmental Protection Agency (EPA), spoke to press at the University of Alaska Fairbanks power plant.

During their time at the university, the federal and state leaders spoke about developing resources such as coal, oil, gas and critical minerals in the 49th state.

During his 24-hour trip to Fairbanks, Zeldin said he has spoke to business and state leaders about environmental regulations impacting operations in Alaska, saying the EPA needs to consider whether regulations are solving problems or are solutions in search of a problem.

He also discussed the concept of “cooperative federalism,” where the EPA takes its cues from state leaders to determine where regulations and help are needed.

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“We’re here at the University of Alaska’s coal plant, and the most modern coal plant in the United States of America,” Dunleavy said.

Zeldin said visiting Fairbanks in winter helps inform decisions the agency is considering.

“There are a lot of decisions right now in front of this agency that the first-hand perspective of being here on the ground helps inform our agency to make the right decision,” he said.

Zeldin also said the agency is hearing concerns from Alaska truckers about diesel exhaust rules in extreme cold.

“We then met with truckers who have been dealing with unique cold weather concerns with the implementation of EPA regulations related to diesel exhaust fluid system,” he said.

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When asked about PFAS in drinking water, Zeldin said the EPA is not rolling back the standards.

“So the PFAS standards are not being rolled back at all,” he said.

On Fairbanks air quality and PM2.5 regulations, Zeldin said the agency wants to work with the state.

“We want, at the EPA, to help the Fairbanks community be able to be in attainment on PM 2.5. We want to make it work,” he said.

Dunleavy said energy costs and heating needs remain a major factor in Interior air quality discussions.

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“People have to be able to live. They’ve got to be able to afford to live,” he said.

Zeldin said EPA is considering further changes to diesel regulations and urged Alaskans to participate in the rulemaking process.

“We need Alaskans to participate in that public comment period,” he said.

See a spelling or grammar error? Report it to web@ktuu.com

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Opinion: Life lessons learned from mushing and old-time Alaska

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Opinion: Life lessons learned from mushing and old-time Alaska


A steel arch commemorating sled dog racing was installed over Fourth Avenue in downtown Anchorage in November 2025. (Marc Lester / ADN)

This is the beginning of the Iditarod spring, signaled by the burst of sun and what used to be the long wait for dog teams to pass under the arch in Nome, the finish line a thousand miles away from Anchorage. For old-timers, it’s the story of the way Alaska used to be. What once was a 30-day wait has become about 10 days for winners to celebrate and the rest of us to shout, “Well done.”

My story is about family that welcomed immigrants from all over the world to be among the last groups of Indigenous people in the country, a life of taking good care of dog teams, and of parents who taught their children how to live in a wild, rugged frontier.

I came to be in a different age, a time of dog teams that ruled the trails to mining camps and where the salmon ran strongest — before the introduction of the snowmachine that revolutionized rural and Native Alaska.

For the Blatchford family, it is a recognition that some things will always stay the same and everything else changes. All four of my grandparents were noncitizens. My mother Lena’s parents of Elim were Alaska Natives, as was my dad Ernie’s mother, Mae, of Shishmaref. The name Blatchford comes from his father, the Englishman who was born in Cornwall and arrived in Nome during the gold rush. His brother, William, was one of the early immigrants, and by 1899 there was a creek just outside Nome named after him. He discovered gold. My grandfather, Percy, found gold, too, but it was a different kind of wealth, a finding that he had found home and never left.

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I was born in Nome, delivered by an Iñupiaq Eskimo midwife in a one-room cabin where the frozen Bering Sea met the treeless tundra’s permafrost. Dad had a dog team. I like to think that the dogs were anxious for me to be born because it was hunting time for Dad to hitch them up and mush out to where the sea mammals, snowshoe hares, ptarmigan and other game thrived in the winter. My earliest memories are of dogs; all of them working as a team to bring home the game so we could have a fine meal cooked by Lena. In the Arctic, dogs were essential for family survival. If you didn’t hunt, you didn’t eat.

There are several memories that remain strong. I suppose I can call them lessons of the Arctic.

The first is to take care of the dogs and treat them well. Dog lovers all over the world know very well that a dog, whatever the breed, is loyal and will die to protect the one who feeds and pets it. If you don’t feed a husky, it won’t pull, and it could mean a long time before the family eats. When a dog team is hungry, it will race back home to be fed a healthy meal. Mother Lena must have been a great cook because Dad said the dog team always raced back to the edge of Nome, where Lena was waiting beside the propane stove. For Mike, Tom and me, our job was to take the rifle, shotgun and .22 into the cabin to be cleaned and oiled. Once that was quickly done, we unhitched the dogs and then fed the team.

All three of us boys had special responsibilities to Tim, Buttons and Girlie. Tim, the lead dog, was brother Mike’s pet; Tom had Buttons, and I had Girlie. We made sure they were healthy and well cared for. Dad would often comment that “Papa,” our grandfather Percy, the Englishman, took good care of his dog teams, being kind to the dogs and feeding them. Dad was the oldest of a large family that lived in Teller and later Nome.

“Papa” Percy was a prospector, fox farmer and a contestant in the All-Alaska Sweepstakes, the dog team race from Nome to the mining camp of Candle, a 400-mile race. He didn’t win, but he finished well, very well. The stories of the Sweepstakes have remained with the family for over a century. At a memorial service in Palmer for “Doc” Blatchford, Aunt Marge, without a question or a prompt, said that Papa took good care of his dogs.

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Percy Blatchford was a legend in the Alaska Territory. As a teacher of Alaska newspapers, I would find headlines similar to one in the Fairbanks Daily News-Miner that blazed on the front page: “Blatchford Wins Solomon Derby.” There was even a story in The New York Times.

There’s probably no other sport in Alaska that brought Alaskans together like dog mushing. When old-timers would visit over strong coffee, dogs and dog team racing would come up. In the territory, there were few high schools and fewer gymnasiums, so the only team sport was dog mushing. It was something to talk about that was unique to Alaskans.

I used to travel in rural Alaska quite a bit. In the smaller communities, I would see the teams and would wonder how long they would power the engines that brought the mail and the foodstuffs down and up the trails. When I think of dog teaming, I think of the Iditarod and wonder, and then come to know, what the strength of the story would mean for bringing generations together from Papa Blatchford to his eldest son Ernie and to the fourth generation of Blatchfords in Alaska.

There are times when I think that old-time Alaska is gone. But then my faith and confidence in the old-time spirit are ignited when I see what others in the Lower 48 see. When I was walking in downtown Philadelphia, I looked up and saw on an ancient federal building a stamped concrete sculpture of a dog musher leaning into a blizzard. Such is the way I think of the Iditarod and the lessons I learned growing up with the dog team, preserved in my memories.

Edgar Blatchford is former mayor of Seward, Mile 0 of the Iditarod Trail.

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These lines are adding Alaska cruises. Is your favorite on the list?

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These lines are adding Alaska cruises. Is your favorite on the list?



New Alaska voyages debut in 2026 as lines like MSC Cruises and Virgin Voyages expand into the booming market.

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Travelers will have new ways to see Alaska this year.

A number of cruise lines are launching sailings to the Last Frontier in 2026, from luxury to large family-friendly and adults-only ships. About 65% of people visiting the state during the summer do so by cruise ship, according to Cruise Lines International Association Alaska, and demand is high.

“I think Alaska is always very popular, but we’re seeing that ships are selling out way quicker than they used to,” Joanna Kuther, a travel agent and owner of Port Side Travel Consultants, told USA TODAY. 

With new inventory opening up this season, here’s what travelers should know about Alaska cruises.

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Which cruise lines are adding Alaska sailings?

  • MSC Cruises will launch its first-ever Alaska sailings aboard MSC Poesia on May 11. The ship will be fresh from dry dock to add enhancements, including the line’s luxe ship-within-a-ship concept, the MSC Yacht Club.
  • Virgin Voyages’ newest ship, Brilliant Lady, will operate the company’s inaugural Alaska cruises. The adults-only cruise line will set sail there starting on May 21.
  • The Ritz-Carlton Yacht Collection will debut its first Alaska cruises this year on its Luminara vessel. The first of those sailings will depart on May 28.

Those join other operators like Holland America Line, Princess Cruises, American Cruise Lines, Norwegian Cruise Line, Royal Caribbean International, Disney Cruise Line, Celebrity Cruises and more.

What are the draws of Alaska cruises?

Glaciers are a major attraction for visitors. “One of the major (draws) is Glacier Bay,” said Kuther. “…And then the other one is definitely the wildlife.”

That includes bears, whales, moose and salmon. In addition to its many natural wonders, the state is also a cultural destination where visitors can learn about its Native peoples.

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When is the best time to take an Alaska cruise?

That depends what you’re looking for. The Alaska cruise season generally runs from April through October, and Kuther said visitors will tend to see more wildlife between the end of June through August.

“That’s super peak season,” she said. “That’s also where you’re going to have more families, more crowds.” Some locals have also said those crowds are putting a strain on the very environment tourists are there to see.

Travelers may find less packed ships and ports by visiting earlier or later in the season – and there are other perks. If passengers go in May “it’s still a little bit snowy, so your scenery is going to be really cool,” Kuther said. Travelers visiting in September or October, meanwhile, could have a better shot at seeing the northern lights.

Where do ships usually sail?

The most popular itinerary is the Inside Passage, according to Kuther. That often sails round-trip from Seattle or Vancouver with stops such as Juneau, Skagway and Ketchikan. “People will go back to Alaska and do different routes,” she said. “This is a very good way to start.” 

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Other options include one-way cruises between Vancouver or Seattle and Anchorage. Travelers can also take cruisetours that combine sailings with land-based exploration, including train rides and tours of Denali National Park and Preserve.

Tips for Alaska cruises

  • Book early: Alaska itineraries sell out quickly, and so do shore excursions. Unique offerings like helicopter tours and dog sledding are popular, and there are only so many spots.
  • Consider a balcony cabin: This is “almost a must” in Kuther’s opinion. Crew members may make announcements about whales or other sightings near the ship, and guests with their own private viewing spot won’t have to race out on deck.
  • Pack carefully: “Packing is an art when it comes to Alaska,” Kuther said. “It really is, because you need so many things.” Her top three picks are bug spray, layers of clothing for the fluctuating temperatures and a waterproof jacket in case of rain.

Nathan Diller is a consumer travel reporter for USA TODAY based in Nashville. You can reach him at ndiller@usatoday.com.



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