TODAY NOV21
TEMPERATURE51
HUMIDITY74
PRESSURE
WIND COND.115 7
  • 5641Fri100%80%
  • 5040Sat90%90%
  • 5140Sun80%
  • 4938Mon
  • 5038Tue
daynightWeather update from US30 EB at Lewis/Clark Br HWY2W MP48.68 at
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Weather Quick Facts

  • The highest monthly average temperature in Deer Island for August is 68 degrees
  • The lowest monthly average temperature in Deer Island for December is 38.1 degrees
  • The most monthly precipitation in Deer Island occurs in November with 7.1 inches
  • The air quality index in Deer Island is 57% better than the national average
  • The pollution index in Deer Island is 19% worse than the national average

Compare Deer Island, OR Weather

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      Deer Island 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°F47°F38°F6.1"
      February34°F52°F42°F4.6"
      March37°F57°F46°F5.7"
      April39°F62°F50°F3.1"
      May45°F70°F57°F2.5"
      June50°F75°F62°F1.4"
      July54°F83°F68°F0.3"
      August54°F84°F68°F0.5"
      September49°F78°F62°F1.6"
      October43°F65°F53°F4.1"
      November37°F53°F45°F7.1"
      December32°F45°F38°F6.9"

      Deer Island 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.
      IndexDeer IslandOregonNational
      Air quality index183242
      Pollution index3,247,5807,156,3562,726,193

      Deer Island air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.020%
      Carbon Tetrachloride0.500%
      Lead0.040%
      Mercury0.001%

      Average monthly Deer Island temperature with heat index

      Deer Island monthly precipitation with daily maximum

      Deer Island monthly snow depth with daily maximum

      Deer Island monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Prescott, OR851864.0%
      Rainier, OR2,0801864.0%
      Kalama, WA2,7081864.0%
      Woodland, WA6,2231864.0%
      St. Helens, OR13,7791864.0%
      Deer Island, OR1051864.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Buckeye, IA1053726.0%
      Tingley, IA1053922.0%
      Unionville, IA1053922.0%
      Lima, IL1054118.0%
      Raglesville, IN105198.0%
      Deer Island, OR1051864.0%
      Source: The Deer Island, OR 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.