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Key findings

  • The highest monthly average temperature in Koyukuk for July is 60.5 degrees
  • The lowest monthly average temperature in Koyukuk for January is -8.8 degrees
  • The most monthly precipitation in Koyukuk occurs in August with 2.4 inches
  • The air quality index in Koyukuk is 24% better than the national average
  • The pollution index in Koyukuk is 5226% worse than the national average

Compare Koyukuk, AK Weather

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      Koyukuk 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
      January-16°F0°F-9°F0.3"
      February-8°F13°F1°F0.1"
      March-6°F19°F6°F0.4"
      April16°F39°F28°F0.6"
      May35°F58°F47°F0.5"
      June48°F68°F58°F2.0"
      July52°F69°F61°F2.3"
      August47°F64°F55°F2.4"
      September36°F53°F44°F2.3"
      October22°F35°F28°F0.7"
      November-1°F14°F6°F0.1"
      December-8°F7°F-1°F0.1"

      Koyukuk 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.
      IndexKoyukukAlaskaNational
      Air quality index383050
      Pollution index269,884,00011,990,2865,066,862

      Koyukuk air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality230
      Days with moderate air quality96
      Days w/ poor A.Q. for sensitive groups18
      Days with unhealthy air quality16

      Koyukuk air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene6.330%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Koyukuk temperature with heat index

      Koyukuk monthly precipitation with daily maximum

      Koyukuk monthly snow depth with daily maximum

      Koyukuk monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Nulato, AK2863824%
      Koyukuk, AK793824%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Garrett, IL794216%
      Ozan, AR793922%
      Katherine, AZ791374%
      Fairburn, SD794412%
      Oak Springs, AZ791766%
      Koyukuk, AK793824%
      Source: The Koyukuk, 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.