TODAY MAR28
TEMPERATURE63
HUMIDITY58
PRESSURE101830
WIND COND. 7.6
  • 6351Fri60%
  • 5849Sat100%70%
  • 6149Sun60%
  • 6550Mon
  • 7152Tue
daynightWeather update from John Wayne-Orange County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Portola Park for August is 72.2 degrees
  • The lowest monthly average temperature in Portola Park for December is 57 degrees
  • The most monthly precipitation in Portola Park occurs in December with 2.4 inches
  • The air quality index in Portola Park is 111% worse than the national average
  • The pollution index in Portola Park is 69% better than the national average

Compare Santa Ana, CA Weather

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      Portola Park 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
      January48°F69°F57°F2.3"
      February49°F69°F58°F1.9"
      March52°F70°F60°F0.9"
      April54°F72°F62°F0.6"
      May59°F73°F65°F0.3"
      June62°F76°F67°F0.0"
      July66°F80°F71°F0.1"
      August66°F82°F72°F0.0"
      September65°F82°F72°F0.2"
      October60°F79°F68°F0.5"
      November54°F75°F63°F0.7"
      December48°F68°F57°F2.4"

      Portola Park 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.
      IndexPortola ParkSanta AnaCalifornia
      Air quality index898955
      Pollution index858,652858,65210,473,190

      Portola Park air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality42
      Days with moderate air quality178
      Days w/ poor A.Q. for sensitive groups79
      Days with unhealthy air quality58

      Portola Park air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.001%

      Average monthly Portola Park temperature with heat index

      Portola Park monthly precipitation with daily maximum

      Portola Park monthly snow depth with daily maximum

      Portola Park monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Cerritos, CA49,3887244.0%
      La Habra, CA62,7877244.0%
      Los Alamitos, CA11,5217244.0%
      Seal Beach, CA24,2687244.0%
      West Whittier-Los Nietos, CA26,1217244.0%
      Santa Ana, CA332,6108978.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Riverside, CA327,5698978.0%
      Corpus Christi, TX326,3324216.0%
      Lexington-Fayette, KY322,2004216.0%
      Vaughan, ON321,974n/a 
      Honolulu, HI347,1813040.0%
      Santa Ana, CA332,6108978.0%
      Source: The Portola Park, Santa Ana, CA 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.