TODAY OCT19
TEMPERATURE54
HUMIDITY83
PRESSURE29.88
WIND COND.200 16.1
  • 5648Sat100%80%
  • 5751Sun80%70%
  • 6054Mon60%60%
  • 6248Tue
  • 6043Wed
daynightWeather update from Portland, Portland International Airport at
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Madison South 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 Madison South for August is 70 degrees.
  • The lowest monthly average temperature in Madison South for December is 40 degrees.
  • The most monthly precipitation in Madison South occurs in November with 6.2 inches.
  • The air quality index in Madison South is 24% better than the national average.
  • The pollution index in Madison South is 63% better than the national average.

Compare Portland, OR Weather To Other Cities

Madison South 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.
IndexMadison SouthPortlandOregon
Air quality index383832
Pollution index1,899,4101,899,4105,374,527

Madison South 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

Madison South air quality information

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

Average monthly Madison South temperature with heat index

Madison South monthly precipitation with daily maximum

Madison South monthly snow depth with daily maximum

Madison South monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Troutdale, OR16,5353824%
West Slope, OR7,6503824%
Camas, WA21,3933824%
Hazel Dell, WA20,9233824%
Minnehaha, WA11,0683824%
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 Madison South, 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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