Current weather conditions temporarily unavailable!

Key findings

  • The highest monthly average temperature in Unalaska for August is 52.5 degrees
  • The lowest monthly average temperature in Unalaska for January is 32.8 degrees
  • The most monthly precipitation in Unalaska occurs in May with 23.6 inches
  • The air quality index in Unalaska is 38% better than the national average
  • The pollution index in Unalaska is 97% better than the national average

Compare Unalaska, AK Weather

      vs
      How would you rate the weather in Unalaska?
      Write a review to give others more information about this area.
      How would you rate the air quality in Unalaska?
      Write a review to give others more information about this area.
      See all Unalaska poll results

      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"

      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 index313050
      Pollution index129,94211,990,2865,066,862

      Unalaska air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality262
      Days with moderate air quality92
      Days w/ poor A.Q. for sensitive groups7
      Days with unhealthy air quality4

      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, AK4,7103138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Moon Lake, FL4,7084314%
      Midway, NC4,7124510%
      Breckenridge Hills, MO4,707548%
      East Quogue, NY4,7144118%
      Rosemont, IL4,7155510%
      Unalaska, AK4,7103138%
      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.