TODAY NOV06
TEMPERATURE45
HUMIDITY90
PRESSURE102980
WIND COND.140 5.4
  • 5741Wed
  • 6042Thu
  • 5949Fri30%60%
  • 5543Sat
  • 5346Sun
daynightWeather update from Portland, Portland International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Roseway for August is 69.5 degrees
  • The lowest monthly average temperature in Roseway for December is 39.9 degrees
  • The most monthly precipitation in Roseway occurs in November with 6.2 inches
  • The air quality index in Roseway is 10% better than the national average
  • The pollution index in Roseway is 30% better than the national average

Compare Portland, OR Weather

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      Roseway 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
      January34°F48°F40°F4.9"
      February36°F53°F43°F3.4"
      March39°F58°F48°F4.8"
      April42°F63°F52°F3.0"
      May48°F71°F58°F2.8"
      June53°F76°F63°F1.7"
      July57°F84°F69°F0.5"
      August58°F85°F70°F0.5"
      September53°F78°F64°F1.8"
      October47°F66°F55°F3.7"
      November40°F55°F47°F6.2"
      December34°F47°F40°F6.2"

      Roseway 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.
      IndexRosewayPortlandOregon
      Air quality index383832
      Pollution index1,899,4101,899,4107,156,356

      Roseway air quality

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.003%
      Benzene0.020%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.002%

      Average monthly Roseway temperature with heat index

      Roseway monthly precipitation with daily maximum

      Roseway monthly snow depth with daily maximum

      Roseway monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gresham, OR110,4563824.0%
      Brush Prairie, WA2,7213824.0%
      Meadow Glade, WA2,7743824.0%
      Bull Mountain, OR9,7323824.0%
      Jennings Lodge, OR8,5003824.0%
      Portland, OR650,3803824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Memphis, TN650,9104510.0%
      Oklahoma City, OK649,821484.0%
      Las Vegas, NV644,594548.0%
      Nashville, TN667,0704510.0%
      Detroit, MI672,3515612.0%
      Portland, OR650,3803824.0%
      Source: The Roseway, Portland, 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.