TODAY MAY05
TEMPERATURE55°F
HUMIDITY69%
PRESSURE30.01 inHg
WIND COND.320° 8.1 mph
  • 8055Fri
  • 8154Sat
  • 6852Sun
  • 6749Mon
  • 7451Tue
daynightWeather update from Portland, Portland International Airport, on 05 May 8:53 am PDT

Old Town-Chinatown Average Weather

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
January19°F66°F41°F5.1"
February22°F65°F43°F2.0"
March28°F75°F47°F3.5"
April31°F83°F51°F2.6"
May37°F95°F59°F2.9"
June46°F102°F63°F1.4"
July51°F106°F70°F0.4"
August48°F102°F68°F0.6"
September41°F95°F64°F1.1"
October30°F78°F54°F2.6"
November27°F67°F47°F6.1"
December12°F63°F39°F5.2"

Did you know?

  • The highest monthly average temperature in Old Town-Chinatown for July is 70 degrees.
  • The lowest monthly average temperature in Old Town-Chinatown for December is 39 degrees.
  • The most monthly precipitation in Old Town-Chinatown occurs in November with 6.1 inches.
  • The air quality index in Old Town-Chinatown is 23% better than the national average.
  • The pollution index in Old Town-Chinatown is 62% better than the national average.

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Compare Portland, OR Weather To Other Cities

Old Town-Chinatown 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.
IndexOld Town-ChinatownPortlandOregon
Air quality index383832
Pollution index1,899,4101,899,4105,393,915

Old Town-Chinatown 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

Old Town-Chinatown air quality information

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

Average monthly Old Town-Chinatown temperature with heat index

Old Town-Chinatown monthly precipitation with daily maximum

Old Town-Chinatown monthly snow depth with daily maximum

Old Town-Chinatown monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Aloha, OR50,7103824%
Cedar Hills, OR9,2733824%
Fairview, OR8,8843824%
Happy Valley, OR14,0503824%
Lake Oswego, OR36,8133824%
Portland, OR585,8883824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Las Vegas, NV587,699548%
Oklahoma City, OK581,094476%
Milwaukee, WI594,3284510%
Louisville, KY597,2315510%
Denver, CO604,356548%
Portland, OR585,8883824%
Source: The Old Town-Chinatown, 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.