TODAY NOV20
TEMPERATURE49
HUMIDITY100
PRESSURE
WIND COND.47 0.6
  • 5333Wed
  • 5232Thu
  • 4933Fri
  • 5038Sat
  • 4938Sun
daynightWeather update from AURORA at
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Lake Oswego 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°F4.1"
February35°F53°F43°F3.9"
March40°F61°F49°F4.7"
April42°F62°F51°F3.1"
May48°F70°F58°F4.2"
June51°F73°F60°F2.3"
July56°F84°F69°F2.0"
August55°F85°F68°F4.3"
September49°F76°F61°F4.5"
October46°F62°F53°F5.6"
November36°F53°F43°F5.8"
December35°F47°F40°F10.1"

Did you know?

  • The highest monthly average temperature in Lake Oswego for July is 69 degrees.
  • The lowest monthly average temperature in Lake Oswego for January is 40 degrees.
  • The most monthly precipitation in Lake Oswego occurs in December with 10.1 inches.
  • The air quality index in Lake Oswego is 24% better than the national average.
  • The pollution index in Lake Oswego is 128% worse than the national average.

Compare Lake Oswego, OR Weather To Other Cities

Lake Oswego 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.
IndexLake OswegoOregonNational
Air quality index383250
Pollution index11,541,1005,374,5275,066,862

Lake Oswego 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

Lake Oswego air quality information

PollutantTotal
Arsenic0.010%
Benzene0.140%
Carbon Tetrachloride0.020%
Lead0.020%
Mercury0.010%

Average monthly Lake Oswego temperature with heat index

Lake Oswego monthly precipitation with daily maximum

Lake Oswego monthly snow depth with daily maximum

Lake Oswego monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Donald, OR1,1733138%
Dundee, OR3,2033138%
St. Paul, OR3893138%
Aloha, OR54,9083824%
Beaverton, OR94,8653824%
Lake Oswego, OR38,0653824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Muskegon, MI38,0863824%
Westerville, OH38,0894314%
The Acreage, FL38,1032942%
Wheeling, IL38,0086020%
Northglenn, CO38,128548%
Lake Oswego, OR38,0653824%
Source: The Lake Oswego, 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.
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