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Unalaska Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January29°F37°F33°F6.7"
February31°F38°F34°F10.1"
March30°F38°F34°F7.2"
April33°F41°F36°F5.0"
May37°F45°F40°F23.6"
June43°F52°F46°F19.7"
July47°F56°F50°F10.9"
August49°F58°F53°F2.6"
September46°F55°F50°F3.1"
October39°F47°F43°F3.2"
November33°F41°F37°F1.3"
December31°F38°F34°F7.5"

Did you know?

  • The highest monthly average temperature in Unalaska for August is 53 degrees.
  • The lowest monthly average temperature in Unalaska for January is 33 degrees.
  • The most monthly precipitation in Unalaska occurs in May with 23.6 inches.
  • The air quality index in Unalaska is 42% better than the national average.
  • The pollution index in Unalaska is 97% better than the national average.

Compare Unalaska, AK Weather To Other Cities

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      Unalaska air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexUnalaskaAlaskaNational
      Air quality index293050
      Pollution index129,94211,990,2865,066,862

      Unalaska air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality284
      Days with moderate air quality76
      Days w/ poor A.Q. for sensitive groups4
      Days with unhealthy air quality1

      Unalaska air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.002%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Unalaska temperature with heat index

      Unalaska monthly precipitation with daily maximum

      Unalaska monthly snow depth with daily maximum

      Unalaska monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Unalaska, AK4,7102942%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Moon Lake, FL4,7084314%
      Midway, NC4,7124118%
      Breckenridge Hills, MO4,7076020%
      East Quogue, NY4,714492%
      Flourtown, PA4,7155714%
      Unalaska, AK4,7102942%
      Source: The Unalaska, AK weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.