TODAY MAY30
TEMPERATURE48
HUMIDITY93
PRESSURE29.91
WIND COND.
  • 5449Sun60%50%
  • 5348Mon70%80%
  • 5348Tue80%
  • 5448Wed
  • 5648Thu
daynightWeather update from Ketchikan, Ketchikan International Airport at
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Ketchikan 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
January32°F41°F37°F18.0"
February31°F42°F36°F13.3"
March32°F44°F38°F13.5"
April37°F50°F43°F12.0"
May43°F58°F50°F8.8"
June49°F63°F55°F7.3"
July53°F65°F58°F9.2"
August53°F66°F59°F11.4"
September49°F60°F54°F16.1"
October42°F52°F46°F20.2"
November35°F43°F39°F16.0"
December31°F40°F35°F14.5"

Did you know?

  • The highest monthly average temperature in Ketchikan for August is 59 degrees.
  • The lowest monthly average temperature in Ketchikan for December is 35 degrees.
  • The most monthly precipitation in Ketchikan occurs in October with 20.2 inches.
  • The air quality index in Ketchikan is 62% better than the national average.
  • The pollution index in Ketchikan is 91% better than the national average.

Compare Ketchikan, AK Weather To Other Cities

      vs

      Ketchikan 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.
      IndexKetchikanAlaskaNational
      Air quality index193050
      Pollution index441,73311,990,2865,066,862

      Ketchikan air quality information

      MeasurementTotal
      Days measured346
      Days with good air quality309
      Days with moderate air quality35
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality

      Ketchikan air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Ketchikan temperature with heat index

      Ketchikan monthly precipitation with daily maximum

      Ketchikan monthly snow depth with daily maximum

      Ketchikan monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Saxman, AK4221962%
      Ketchikan, AK8,1891962%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Wynne, AR8,1954412%
      Aransas Pass, TX8,1803922%
      Garden City Park, NY8,179536%
      Firebaugh, CA8,1766530%
      Hillsdale, MI8,2033824%
      Ketchikan, AK8,1891962%
      Source: The Ketchikan, 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.