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Key findings

  • The highest monthly average temperature in Volcano for July is 64 degrees
  • The lowest monthly average temperature in Volcano for January is 29 degrees
  • The most monthly precipitation in Volcano occurs in December with 3.7 inches
  • The air quality index in Volcano is 22% better than the national average
  • The pollution index in Volcano is 68% better than the national average

Compare Volcano, CA Weather

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      Volcano 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
      January17°F44°F29°F3.5"
      February20°F46°F32°F3.4"
      March24°F50°F36°F2.7"
      April28°F56°F41°F1.6"
      May33°F64°F48°F1.5"
      June39°F74°F57°F0.6"
      July44°F83°F64°F0.3"
      August42°F81°F62°F0.5"
      September37°F75°F56°F0.4"
      October31°F64°F45°F2.1"
      November25°F53°F37°F1.9"
      December19°F45°F31°F3.7"

      Volcano 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.
      IndexVolcanoCaliforniaNational
      Air quality index395550
      Pollution index1,641,28018,106,7265,066,862

      Volcano air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality331
      Days with moderate air quality33
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Volcano air quality information

      PollutantTotal
      Arsenic0.090%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.010%

      Average monthly Volcano temperature with heat index

      Volcano monthly precipitation with daily maximum

      Volcano monthly snow depth with daily maximum

      Volcano monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Jackson, CA4,6303922%
      Sutter Creek, CA2,4873922%
      Buckhorn, CA2,7253922%
      Martell, CA3123922%
      Rail Road Flat, CA2653922%
      Volcano, CA243922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Long Lake, SD242060%
      Carlton, AL244216%
      Beaverdam, NV244412%
      Berea, NE241962%
      Kupreanof, AK242060%
      Volcano, CA243922%
      Source: The Volcano, 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.