TODAY NOV11
TEMPERATURE66
HUMIDITY78
PRESSURE101610
WIND COND.217 9.6
  • 6849Tue
  • 7649Wed
  • 6951Thu
  • 6246Fri
  • 6145Sat
daynightWeather update from WD6AWP Huntington Beach at
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Weather Quick Facts

  • The highest monthly average temperature in Fountain Valley for August is 72.2 degrees
  • The lowest monthly average temperature in Fountain Valley for December is 57 degrees
  • The most monthly precipitation in Fountain Valley occurs in December with 2.4 inches
  • The air quality index in Fountain Valley is 71% worse than the national average
  • The pollution index in Fountain Valley is 69% better than the national average

Compare Fountain Valley, CA Weather

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      Fountain Valley 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"

      Fountain Valley 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.
      IndexFountain ValleyCaliforniaNational
      Air quality index725542
      Pollution index858,65210,473,1902,726,193

      Fountain Valley air quality

      MeasurementTotal
      Days measured365
      Days with good air quality66
      Days with moderate air quality208
      Days w/ poor A.Q. for sensitive groups62
      Days with unhealthy air quality28

      Air quality details

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

      Average monthly Fountain Valley temperature with heat index

      Fountain Valley monthly precipitation with daily maximum

      Fountain Valley monthly snow depth with daily maximum

      Fountain Valley monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bellflower, CA76,3397244.0%
      Hawaiian Gardens, CA14,2127244.0%
      La Palma, CA15,6577244.0%
      Seal Beach, CA24,2687244.0%
      Buena Park, CA82,2287244.0%
      Fountain Valley, CA56,1187244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Tinley Park, IL56,0825510.0%
      Pocatello, ID56,0162746.0%
      New Brunswick, NJ55,9924118.0%
      Valdosta, GA56,3203530.0%
      Smyrna, GA56,333524.0%
      Fountain Valley, CA56,1187244.0%
      Source: The Fountain Valley, 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.