Anchorage weather in January

January in Anchorage: freezing, a little rain, with clean air — not the time — well below freezing.

Updated September 2026 · climate normals from ERA5 reanalysis

Anchorage🇺🇸 United States · Alaska & the Far North · City30
  1. 30Jan
  2. 40Feb
  3. 50Mar
  4. 70Apr
  5. 81May
  6. 90Jun
  7. 93Jul
  8. 83Aug
  9. 73Sep
  10. 57Oct
  11. 36Nov
  12. 27Dec

#11 of 12 months in Anchorage · #1348 of 1413 destinations to visit in January · comfort 30/100 (tier F)

Days
-4°C
Nights
-12°C
Wet days
6
Sun
2.2 h
Humidity
82%
Daylight
7 h
Anchorage, United States
Photo: A G · Pexels

Traveller notes on Anchorage in January

Anchorage forum threads describe January as the coldest month of the year, with posters reporting stretches of weeks at 20 below zero Fahrenheit and some accounts of even colder readings. Daylight was flagged as a defining feature of the month - roughly from 9am to 3pm on a typical day, with one specific mid-January date cited as sunrise 10:35am, sunset 3:23pm. Posters noted that a chinook wind pattern most years brings periodic warm-ups that cause real temperature swings within the month. Outdoor options in the deep cold were described as limited but real - dog sledding, cross-country skiing and snowmachining were all named as viable winter activities, alongside indoor options like the museums and the Wildlife Conservation Center.
ChugachViewRegular · January · 1 month ago · Read more on Tripadvisor ↗

Other months in Anchorage

Regulars describe a real range within the month - anywhere from below-freezing and snowy to cold and rainy to sunny and warm - with conditions specifically noted to get markedly worse later in the month than earlier. Our row backs the cooling, wetter read, 14.1C over 6.4C nights feeling 5C, with 71.3mm of rain across 12.1 days and a trace of early snow, 1.2cm. Regulars are specific that fall colors peak in late August to early September, so by mid-month leaves are already falling with trees turning from green toward yellow rather than at their most vivid. One mid-September visitor's own report described a genuinely pleasant trip, highs in the 50s-60s Fahrenheit and lows in the 30s. The sea sits at a cold 12.8C. The record: 6.8 hours of sun, an 8.9 kph wind and one of the cleanest air readings in this project, AQI 19.
GetsWorseLaterInTheMonthNotEarlier · September · 1 month ago · Read more on Tripadvisor ↗
May splits in two here and locals use their own word for the first half: breakup, when the thaw turns trails to mud and slush and some of them are still snow. Late May is a different month - they call it some of the best weather of the year - and the shoulder rates run to about the 1st of June, with the summer season proper from mid-May. Our row shows the transition: 14.6C days over 5.3C nights, 2.8cm still in the snow column, and 26.1mm of rain across 4.6 days, one of the driest months. The daylight is already 17.6 hours. The sea is 3.5C, which is not a swimming number. The record: humidity 76 percent, 11.4 hours of sun and AQI 31.
BreakupThenTheGreenExplosion · May · 1 month ago · Read more on Tripadvisor ↗
August is statistically the wettest month in this part of Alaska and regulars neither deny it nor dramatise it: light rain here and there rather than all day every day, plenty of cloud, and genuinely fine days in among it. May and June are the dry months, July and August the wet ones, and the clear weather tends to return at the very end of August into September. Our row gives 94.4mm across 13.3 days with 18.9C by day and 11C at night, and 15.7 hours of daylight to use them in. The silvers start running towards the end of the month. Nothing stops for the weather, so the answer is clothing. The record: humidity 81 percent, 8.8 hours of sun and AQI 22.
TheWettestMonthAndStillWorthIt · August · 1 month ago · Read more on Tripadvisor ↗
July in Anchorage runs from overcast, cool and rainy to bright and sunny, and regulars are honest that the best weather often comes earlier, in May and June. Their packing answer is the same whatever the forecast says: layers - a t-shirt, a fleece and a lightweight rain jacket - with enclosed shoes rather than sandals and a long-sleeved shirt that doubles as mosquito cover. Anything on the water is much colder than the town, so a hat and gloves go in the bag too. The other July fact is the light: our row gives 18.3 hours of daylight, and the practical advice attached is to bring an eye mask if that will keep you awake. The record: 20.6C days, 12.5C nights, 8.9 precipitation days carrying 59.2mm and AQI 23.
BringAnEyeMask · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Anchorage's card on the map.

Anchorage climate normals — January

Daytime high-4°C / 24°F🥶 freezing
Nighttime low-12°C / 10°F
Feels like (high)-8°C / 18°F
Sea temperature-1°C / 31°F🥶 cold sea
Rainfall45 mm / 1.8 in🌦 some rain
Rainy days6 days
Humidity82%💦 very humid
Dew point-11°C / 12°F
Sunshine2.2 h/day
Daylight6.5 h
Wind9 km/h / 6 mph
Snowfall43.8 cm / 17.2 in
Air quality (US AQI)32🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Anchorage in January

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsChristmas and New Year, Winter / Christmas break in United States, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Anchorage's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherAnchorage's weather peaks June–August, best around July.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Anchorage in January

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Aurora season

    20 Aug – 15 Apr

    From late August the nights are dark enough again. City light washes out all but the strong displays, so the trick is a twenty-minute drive north or up Glen Alps and away from the bowl.

  • Holiday

    Christmas and New Year

    24 Dec – 1 JanChristmas & New YearClosuresCrowded

    Christmas Day and New Year's Day are federal holidays: on 25 December most shops, museums and many restaurants close, and airports stay busy through the week between as families travel. New Year's Eve fills bars and restaurants, many at set-menu prices. Source ↗

  • Season

    Snow season

    Ski season

    About 44 cm of snow falls in the month.

    from the climate normals

What's on around the world in January →

Where is Anchorage?

Loading map…

Anchorage in January — FAQ

Is January a good time to visit Anchorage?
January in Anchorage: freezing, a little rain, with clean air — not the time — well below freezing. It ranks #11 of 12 months for Anchorage on SeasonMap's comfort score (30/100).
What is the weather like in Anchorage in January?
In January, Anchorage averages a daily high of -4.3°C and a low of -12.2°C, with about 45.4 mm of rain over roughly 6.2 rainy days.
What is the air quality in Anchorage in January?
Anchorage has a mean US Air Quality Index of about 32 in January.
Does it snow in Anchorage in January?
Anchorage sees roughly 43.8 cm of snowfall in January.