Unalaska climate

Unalaska Weather in January

NOAA 1991-2020 normals for Dutch Harbor, 2.4 km from Unalaska

Average highs run from 38°F on January 1 to 38°F on January 31, and lows from 29°F to 29°F. Normal precipitation for the month is 6.79 in over about 22 wet days.

January day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Unalaska, in °F, with the record for each date.-200204060151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
37°F
Average low
29°F
Precipitation
6.79 in
Snowfall
22.0 in
Record high
58°FJan 11, 1952
Record low
-8°FJan 22, 1986
Chance of a freeze
100%
Daylight
7 h 32 min to 8 h 52 min
Cloud cover
89%
Humidity
85%
Dew point
29°F
Wind
18.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jan 138°F29°F48°F 19165°F 198672%32%
Jan 238°F29°F49°F 193214°F 198871%32%
Jan 338°F29°F48°F 194714°F 193471%32%
Jan 437°F29°F51°F 195213°F 194071%32%
Jan 537°F29°F51°F 195214°F 194071%32%
Jan 637°F29°F48°F 193215°F 198671%32%
Jan 737°F29°F48°F 193714°F 200071%32%
Jan 837°F29°F50°F 193515°F 193271%32%
Jan 937°F29°F50°F 19478°F 199671%32%
Jan 1037°F29°F55°F 19528°F 198671%32%
Jan 1137°F29°F58°F 19529°F 191971%32%
Jan 1237°F29°F50°F 19999°F 191971%32%
Jan 1337°F29°F52°F 20148°F 192171%32%
Jan 1437°F29°F55°F 19378°F 192171%33%
Jan 1537°F29°F50°F 193710°F 198371%33%
Jan 1637°F29°F52°F 192910°F 192871%33%
Jan 1737°F29°F48°F 192912°F 199171%33%
Jan 1837°F29°F55°F 193312°F 199871%33%
Jan 1937°F29°F48°F 193715°F 194771%33%
Jan 2037°F29°F52°F 19298°F 191971%33%
Jan 2137°F29°F50°F 19946°F 191971%33%
Jan 2237°F29°F52°F 1932-8°F 198671%33%
Jan 2337°F29°F46°F 20257°F 199971%33%
Jan 2437°F29°F54°F 19298°F 191971%34%
Jan 2537°F29°F50°F 19296°F 191971%34%
Jan 2637°F29°F46°F 19297°F 191971%34%
Jan 2738°F29°F49°F 20085°F 198971%34%
Jan 2838°F29°F56°F 19294°F 198971%34%
Jan 2938°F29°F46°F 19288°F 199571%33%
Jan 3038°F29°F56°F 19329°F 198971%33%
Jan 3138°F29°F53°F 199412°F 195471%33%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Unalaska, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (AKST).

January 1
sunrise 10:24 AM, sunset 5:56 PM
January 31
sunrise 9:54 AM, sunset 6:46 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00502587 (Dutch Harbor), public domain. Records: NOAA GHCN-Daily, station USC00502587, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.