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Climate & Weather Averages in Unalaska, Alaska, USA

Now
46 °F

Light rain. Mostly cloudy.


Feels Like: 41 °F
Forecast: 48 / 44 °F
Wind: 9 mph from Northwest

Location: Dutch Harbor

Current Time: Sep 23, 2019 at 5:25:51 am

Latest Report: Sep 23, 2019 at 4:56 am


Visibility: 10 mi

Pressure: 29.82 "Hg

Humidity: 73%

Dew Point: 38 °F

Location of UnalaskaLocation

Annual Weather Averages in Unalaska

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Unalaska

High Temp: 58 °F

Low Temp: 29 °F

Mean Temp: 41 °F

Precipitation: 2.25"

Humidity: 77%

Dew Point: 34 °F

Wind: 11 mph

Pressure: 29.74 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Unalaska

High Temp: 37 °F

Low Temp: 29 °F

Mean Temp: 33 °F

Precipitation: 2.91"

Humidity: 77%

Dew Point: 26 °F

Wind: 12 mph

Pressure: 29.52 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Unalaska

High Temp: 38 °F

Low Temp: 29 °F

Mean Temp: 34 °F

Precipitation: 2.55"

Humidity: 76%

Dew Point: 27 °F

Wind: 12 mph

Pressure: 29.60 "Hg

Visibility: 8 mi

March Climate & Weather Averages in Unalaska

High Temp: 38 °F

Low Temp: 30 °F

Mean Temp: 34 °F

Precipitation: 2.37"

Humidity: 75%

Dew Point: 27 °F

Wind: 12 mph

Pressure: 29.73 "Hg

Visibility: 8 mi

April Climate & Weather Averages in Unalaska

High Temp: 41 °F

Low Temp: 32 °F

Mean Temp: 36 °F

Precipitation: 1.71"

Humidity: 76%

Dew Point: 29 °F

Wind: 12 mph

Pressure: 29.77 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Unalaska

High Temp: 46 °F

Low Temp: 37 °F

Mean Temp: 41 °F

Precipitation: 1.56"

Humidity: 78%

Dew Point: 34 °F

Wind: 10 mph

Pressure: 29.87 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Unalaska

High Temp: 51 °F

Low Temp: 42 °F

Mean Temp: 47 °F

Precipitation: 0.94"

Humidity: 80%

Dew Point: 40 °F

Wind: 9 mph

Pressure: 29.89 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Unalaska

High Temp: 56 °F

Low Temp: 46 °F

Mean Temp: 51 °F

Precipitation: 0.92"

Humidity: 82%

Dew Point: 45 °F

Wind: 8 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Unalaska

High Temp: 58 °F

Low Temp: 48 °F

Mean Temp: 53 °F

Precipitation: 1.13"

Humidity: 81%

Dew Point: 46 °F

Wind: 9 mph

Pressure: 29.95 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Unalaska

High Temp: 54 °F

Low Temp: 44 °F

Mean Temp: 49 °F

Precipitation: 2.79"

Humidity: 77%

Dew Point: 42 °F

Wind: 11 mph

Pressure: 29.78 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Unalaska

High Temp: 47 °F

Low Temp: 38 °F

Mean Temp: 43 °F

Precipitation: 3.19"

Humidity: 75%

Dew Point: 35 °F

Wind: 12 mph

Pressure: 29.68 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Unalaska

High Temp: 42 °F

Low Temp: 33 °F

Mean Temp: 38 °F

Precipitation: 3.09"

Humidity: 74%

Dew Point: 30 °F

Wind: 13 mph

Pressure: 29.66 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Unalaska

High Temp: 39 °F

Low Temp: 31 °F

Mean Temp: 35 °F

Precipitation: 3.83"

Humidity: 76%

Dew Point: 28 °F

Wind: 12 mph

Pressure: 29.49 "Hg

Visibility: 8 mi

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Quick Climate Info

Hottest MonthAugust (53 °F avg)
Coldest MonthJanuary (33 °F avg)
Wettest MonthDecember (3.83" avg)
Windiest MonthNovember (13 mph avg)
Annual Rainfall26.99" (per year)

Weather by CustomWeather, © 2019