TODAY NOV07
TEMPERATURE77
HUMIDITY
PRESSURE101830
WIND COND.
  • 7450Fri
  • 7452Sat
  • 7251Sun
  • 6951
  • 7051Tue
daynightWeather update from John Wayne-Orange County Airport at
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Weather Quick Facts

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

Compare Irvine, CA Weather

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      Rancho San Joaquin 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"

      Rancho San Joaquin 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.
      IndexRancho San JoaquinIrvineCalifornia
      Air quality index898955
      Pollution index44,192,60044,192,60010,473,190

      Rancho San Joaquin 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 Rancho San Joaquin temperature with heat index

      Rancho San Joaquin monthly precipitation with daily maximum

      Rancho San Joaquin monthly snow depth with daily maximum

      Rancho San Joaquin monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Cypress, CA49,1377244.0%
      Rossmoor, CA11,9237244.0%
      Buena Park, CA82,2287244.0%
      Huntington Beach, CA199,7787244.0%
      Hawaiian Gardens, CA14,2127244.0%
      Irvine, CA272,6948978.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Toledo, OH275,1164020.0%
      Durham, NC276,3414412.0%
      Chula Vista, CA268,7796428.0%
      Fort Wayne, IN268,3784510.0%
      Saskatoon, SK281,340n/a 
      Irvine, CA272,6948978.0%
      Source: The Rancho San Joaquin, Irvine, 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.