TODAY NOV24
TEMPERATURE49
HUMIDITY74
PRESSURE100980
WIND COND.200 16.6
  • 4741Sun80%90%
  • 4840Mon80%50%
  • 4838Tue30%
  • 4535Wed
  • 4434
daynightWeather update from Portland, Portland International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Far Southwest for August is 69.5 degrees
  • The lowest monthly average temperature in Far Southwest for December is 39.9 degrees
  • The most monthly precipitation in Far Southwest occurs in November with 6.2 inches
  • The air quality index in Far Southwest is 10% better than the national average
  • The pollution index in Far Southwest is 323% worse than the national average

Compare Portland, OR Weather

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      Far Southwest 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"

      Far Southwest 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.
      IndexFar SouthwestPortlandOregon
      Air quality index383832
      Pollution index11,541,1001,899,4107,156,356

      Far Southwest 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 Far Southwest temperature with heat index

      Far Southwest monthly precipitation with daily maximum

      Far Southwest monthly snow depth with daily maximum

      Far Southwest monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Dundee, OR3,2963236.0%
      Gresham, OR110,4563824.0%
      Camas, WA24,0433824.0%
      Durham, OR1,7643824.0%
      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 Far Southwest, 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.