TODAY NOV20
TEMPERATURE44
HUMIDITY62
PRESSURE30.07
WIND COND.120 10.3
  • 5441Tue
  • 5044Wed80%60%
  • 5144100%80%
  • 5040Fri
  • 5041Sat
daynightWeather update from Portland, Portland International Airport at

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West Slope 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°F4.1"
February33°F53°F42°F3.0"
March38°F60°F48°F4.8"
April39°F61°F50°F2.9"
May45°F70°F57°F4.8"
June48°F72°F59°F2.1"
July53°F83°F68°F1.3"
August51°F84°F67°F1.2"
September44°F75°F59°F2.8"
October42°F61°F50°F3.8"
November33°F52°F42°F7.5"
December33°F45°F39°F11.3"

Did you know?

  • The highest monthly average temperature in West Slope for July is 68 degrees.
  • The lowest monthly average temperature in West Slope for January is 38 degrees.
  • The most monthly precipitation in West Slope occurs in December with 11.3 inches.
  • The air quality index in West Slope is 23% better than the national average.
  • The pollution index in West Slope is 35% better than the national average.

Real Estate Listings In West Slope

Compare Beaverton, OR Weather To Other Cities

West Slope 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.
IndexWest SlopeBeavertonOregon
Air quality index383832
Pollution index3,247,58015,149,9005,374,527

West Slope air quality information

MeasurementTotal
Days measured365
Days with good air quality241
Days with moderate air quality108
Days w/ poor A.Q. for sensitive groups12
Days with unhealthy air quality4

West Slope air quality information

PollutantTotal
Arsenic0.010%
Benzene0.160%
Carbon Tetrachloride0.030%
Lead0.080%
Mercury0.010%

Average monthly West Slope temperature with heat index

West Slope monthly precipitation with daily maximum

West Slope monthly snow depth with daily maximum

West Slope monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Aloha, OR54,9083824%
Cedar Hills, OR8,1353824%
Garden Home-Whitford, OR6,2913824%
Jennings Lodge, OR7,7273824%
Maywood Park, OR9393824%
Beaverton, OR94,8653824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Livonia, MI94,849524%
Brockton, MA94,813476%
League City, TX94,976524%
New Bedford, MA94,9884510%
Sparks, NV94,71850= 100
Beaverton, OR94,8653824%
Source: The West Slope, Beaverton, 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.