TODAY APR25
TEMPERATURE53
HUMIDITY93
PRESSURE101660
WIND COND.200 13
  • 5449Thu100%100%
  • 5647Fri90%50%
  • 5449Sat90%90%
  • 5545Sun
  • 5544Mon
daynightWeather update from Astoria, Astoria Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Chinook for August is 60.9 degrees
  • The lowest monthly average temperature in Chinook for December is 42.4 degrees
  • The most monthly precipitation in Chinook occurs in November with 12.7 inches
  • The air quality index in Chinook is 57% better than the national average
  • The pollution index in Chinook is 55% worse than the national average

Compare Chinook, WA Weather

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      Chinook 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
      January36°F51°F43°F10.5"
      February37°F53°F44°F6.7"
      March39°F55°F46°F9.5"
      April40°F57°F49°F6.0"
      May45°F63°F53°F4.1"
      June50°F66°F57°F2.4"
      July53°F69°F60°F1.0"
      August53°F71°F61°F0.8"
      September50°F70°F59°F3.3"
      October45°F63°F53°F7.4"
      November40°F55°F47°F12.7"
      December36°F49°F42°F11.3"

      Chinook 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.
      IndexChinookWashingtonNational
      Air quality index183642
      Pollution index4,215,4104,541,8502,726,193

      Chinook air quality information

      MeasurementTotal
      Days measured360
      Days with good air quality338
      Days with moderate air quality22
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Chinook air quality information

      PollutantTotal
      Arsenic0.005%
      Benzene0.050%
      Carbon Tetrachloride0.004%
      Lead0.030%
      Mercury0.250%

      Average monthly Chinook temperature with heat index

      Chinook monthly precipitation with daily maximum

      Chinook monthly snow depth with daily maximum

      Chinook monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Deep River, WA1691864.0%
      Rosburg, WA3201864.0%
      Astoria, OR9,9291864.0%
      Jeffers Gardens, OR3121864.0%
      Warrenton, OR5,6351864.0%
      Chinook, WA1681864.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Marshall, AK1683138.0%
      Sedgwick, AR1684510.0%
      Elgin, AZ1684510.0%
      La Junta Gardens, CO1682060.0%
      Makena, HI1681570.0%
      Chinook, WA1681864.0%
      Source: The Chinook, WA 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.