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Key findings

  • The highest monthly average temperature in Onyx for July is 89.9 degrees
  • The lowest monthly average temperature in Onyx for December is 43.6 degrees
  • The most monthly precipitation in Onyx occurs in January with 0.8 inches
  • The air quality index in Onyx is 35% worse than the national average
  • The pollution index in Onyx is 87% better than the national average

Compare Onyx, CA Weather

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      Onyx 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
      January31°F62°F45°F0.8"
      February35°F67°F51°F0.5"
      March42°F74°F58°F0.2"
      April47°F80°F64°F0.0"
      May55°F89°F73°F0.0"
      June64°F100°F84°F0.0"
      July71°F106°F90°F0.0"
      August68°F104°F87°F0.1"
      September60°F96°F79°F0.2"
      October49°F83°F66°F0.1"
      November38°F71°F54°F0.2"
      December30°F59°F44°F0.5"

      Onyx 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.
      IndexOnyxCaliforniaNational
      Air quality index675550
      Pollution index645,21118,106,7265,066,862

      Onyx air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality119
      Days with moderate air quality151
      Days w/ poor A.Q. for sensitive groups87
      Days with unhealthy air quality6

      Onyx air quality information

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

      Average monthly Onyx temperature with heat index

      Onyx monthly precipitation with daily maximum

      Onyx monthly snow depth with daily maximum

      Onyx monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Squirrel Mountain Valley, CA1,0776734%
      Lake Isabella, CA3,6066734%
      Weldon, CA2,6916734%
      Kernville, CA1,3196734%
      Wofford Heights, CA1,5906734%
      Onyx, CA6106734%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Coolville, OH6103530%
      Deport, TX610325550%
      Balmorhea, TX610476%
      Ailey, GA6102648%
      New Salisbury, IN610492%
      Onyx, CA6106734%
      Source: The Onyx, 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.