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Key findings

  • The highest monthly average temperature in Port Graham for July is 54.6 degrees
  • The lowest monthly average temperature in Port Graham for January is 26.4 degrees
  • The most monthly precipitation in Port Graham occurs in December with 4.6 inches
  • The air quality index in Port Graham is 38% better than the national average
  • The pollution index in Port Graham is 57% better than the national average

Compare Port Graham, AK Weather

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      Port Graham 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
      January21°F32°F26°F3.9"
      February23°F34°F28°F3.4"
      March22°F35°F28°F1.9"
      April30°F43°F36°F2.8"
      May37°F53°F44°F1.2"
      June43°F58°F50°F1.2"
      July48°F62°F55°F1.6"
      August48°F61°F54°F2.6"
      September43°F56°F49°F4.2"
      October34°F47°F40°F4.0"
      November26°F36°F31°F4.1"
      December24°F34°F28°F4.6"

      Port Graham 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 GrahamAlaskaNational
      Air quality index313050
      Pollution index2,169,57011,990,2865,066,862

      Port Graham 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 Graham air quality information

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

      Average monthly Port Graham temperature with heat index

      Port Graham monthly precipitation with daily maximum

      Port Graham monthly snow depth with daily maximum

      Port Graham monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Nanwalek, AK2163138%
      Seldovia, AK2473138%
      Seldovia Village, AK1753138%
      Port Graham, AK1973138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Harpster, OH1973922%
      Tiro, OH1974118%
      Olds, IA1973236%
      Washta, IA1973530%
      Dwight, NE1973138%
      Port Graham, AK1973138%
      Source: The Port Graham, 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.