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Key findings

  • The highest monthly average temperature in Port Alsworth for July is 55 degrees
  • The lowest monthly average temperature in Port Alsworth for January is 17 degrees
  • The most monthly precipitation in Port Alsworth occurs in September with 5.6 inches
  • The air quality index in Port Alsworth is 38% better than the national average
  • The pollution index in Port Alsworth is 57% better than the national average

Compare Port Alsworth, AK Weather

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      Port Alsworth 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
      January10°F25°F17°F0.8"
      February14°F30°F22°F0.7"
      March11°F30°F20°F0.8"
      April25°F42°F34°F0.7"
      May35°F55°F45°F1.2"
      June43°F62°F52°F1.7"
      July48°F64°F55°F3.5"
      August48°F63°F55°F4.6"
      September42°F56°F48°F5.6"
      October31°F45°F38°F2.8"
      November16°F31°F24°F1.8"
      December15°F29°F22°F1.4"

      Port Alsworth 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.
      IndexPort AlsworthAlaskaNational
      Air quality index313050
      Pollution index2,169,57011,990,2865,066,862

      Port Alsworth 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

      Port Alsworth air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.040%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.000%

      Average monthly Port Alsworth temperature with heat index

      Port Alsworth monthly precipitation with daily maximum

      Port Alsworth monthly snow depth with daily maximum

      Port Alsworth monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Port Alsworth, AK1563138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bushnell, NE1561962%
      Glen Arbor, MI1563628%
      Alger, WA1563432%
      Winthrop, AR1563922%
      Bruce, SD1564216%
      Port Alsworth, AK1563138%
      Source: The Port Alsworth, 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.