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Oregon City 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 Oregon City for July is 69 degrees.
  • The lowest monthly average temperature in Oregon City for January is 40 degrees.
  • The most monthly precipitation in Oregon City occurs in December with 10.1 inches.
  • The air quality index in Oregon City is 23% better than the national average.
  • The pollution index in Oregon City is 127% worse than the national average.

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Oregon City 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.
IndexOregon CityOregonNational
Air quality index383250
Pollution index11,541,1005,374,5275,066,862

Oregon City 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

Oregon City air quality information

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

Average monthly Oregon City temperature with heat index

Oregon City monthly precipitation with daily maximum

Oregon City monthly snow depth with daily maximum

Oregon City monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Woodburn, OR24,7653138%
Donald, OR1,1733138%
Hubbard, OR3,2683138%
Molalla, OR8,8673138%
Aloha, OR54,9083824%
Oregon City, OR35,0573824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Kaneohe, HI35,0653040%
Bettendorf, IA35,0485510%
University City, MO35,0426020%
Orangevale, CA35,0845510%
Prattville, AL35,1073726%
Oregon City, OR35,0573824%
Source: The Oregon City, 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.