TODAY NOV21
TEMPERATURE46
HUMIDITY67
PRESSURE102020
WIND COND.318
  • 7346
  • 6848Fri
  • 6351Sat40%60%
  • 6448Sun40%
  • 6348Mon
daynightWeather update from EW3225 Laguna Hills at
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Weather Quick Facts

  • The highest monthly average temperature in Aliso Viejo for August is 72.2 degrees
  • The lowest monthly average temperature in Aliso Viejo for December is 57 degrees
  • The most monthly precipitation in Aliso Viejo occurs in December with 2.4 inches
  • The air quality index in Aliso Viejo is 111% worse than the national average
  • The pollution index in Aliso Viejo is 1521% worse than the national average

Compare Aliso Viejo, CA Weather

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      Aliso Viejo 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"

      Aliso Viejo 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.
      IndexAliso ViejoCaliforniaNational
      Air quality index895542
      Pollution index44,192,60010,473,1902,726,193

      Aliso Viejo air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.030%
      Benzene0.280%
      Carbon Tetrachloride0.001%
      Lead0.220%
      Mercury0.140%

      Average monthly Aliso Viejo temperature with heat index

      Aliso Viejo monthly precipitation with daily maximum

      Aliso Viejo monthly snow depth with daily maximum

      Aliso Viejo monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Garden Grove, CA172,8007244.0%
      Midway City, CA8,6817244.0%
      Fountain Valley, CA56,1187244.0%
      Laguna Niguel, CA65,0488978.0%
      Lake Forest, CA84,6668978.0%
      Aliso Viejo, CA50,3858978.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Maricopa, AZ50,3587448.0%
      Country Club, FL50,4364118.0%
      Galveston, TX50,307524.0%
      Hoffman Estates, IL50,4645510.0%
      Plainfield, NJ50,252512.0%
      Aliso Viejo, CA50,3858978.0%
      Source: The Aliso Viejo, 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.