TODAY JUL20
TEMPERATURE57
HUMIDITY74
PRESSURE30.07
WIND COND.50 3.4
  • 8559
  • 8860Sun
  • 8360Mon
  • 7959Tue
  • 7858Wed
daynightWeather update from Portland, Portland International Airport at
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Richmond 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"

Did you know?

  • The highest monthly average temperature in Richmond for August is 70 degrees.
  • The lowest monthly average temperature in Richmond for December is 40 degrees.
  • The most monthly precipitation in Richmond occurs in November with 6.2 inches.
  • The air quality index in Richmond is 24% better than the national average.
  • The pollution index in Richmond is 378% worse than the national average.

Compare Portland, OR Weather To Other Cities

Richmond 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.
IndexRichmondPortlandOregon
Air quality index383832
Pollution index24,235,4001,899,4105,374,527

Richmond 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

Richmond air quality information

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

Average monthly Richmond temperature with heat index

Richmond monthly precipitation with daily maximum

Richmond monthly snow depth with daily maximum

Richmond monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Beaverton, OR94,8653824%
Cedar Mill, OR15,9933824%
Fairview, OR9,2153824%
Happy Valley, OR17,4743824%
Lake Oswego, OR38,0653824%
Portland, OR620,5893824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Baltimore, MD621,000468%
Oklahoma City, OK620,015476%
Las Vegas, NV613,295548%
Louisville, KY611,5735510%
Milwaukee, WI598,6724510%
Portland, OR620,5893824%
Source: The Richmond, 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.
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