TODAY DEC15
TEMPERATURE34
HUMIDITY75
PRESSURE29.62
WIND COND.160 6.9
  • 4540Sun100%90%
  • 4642Mon90%80%
  • 4642Tue80%
  • 4542Wed
  • 4541Thu
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 61% better than the national average.
  • The pollution index in Ketchikan is 91% better than the national average.

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Compare Ketchikan, AK Weather To Other Cities

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.