TODAY NOV24
TEMPERATURE47
HUMIDITY90
PRESSURE101520
WIND COND.
  • 5448Mon80%70%
  • 5640Tue40%30%
  • 5738Wed
  • 5640
  • 5641Fri
daynightWeather update from Napa, Napa County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in American Canyon for July is 64.6 degrees
  • The lowest monthly average temperature in American Canyon for December is 46.6 degrees
  • The most monthly precipitation in American Canyon occurs in January with 3.8 inches
  • The air quality index in American Canyon is 5% better than the national average
  • The pollution index in American Canyon is 161% worse than the national average

Compare American Canyon, CA Weather

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      American Canyon 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
      January36°F58°F47°F3.8"
      February39°F62°F50°F3.4"
      March41°F66°F52°F3.0"
      April42°F69°F55°F1.6"
      May46°F74°F59°F0.5"
      June50°F80°F64°F0.3"
      July53°F81°F65°F0.0"
      August53°F80°F64°F0.0"
      September49°F82°F64°F0.1"
      October45°F76°F59°F1.3"
      November40°F66°F52°F1.8"
      December36°F58°F47°F3.8"

      American Canyon 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.
      IndexAmerican CanyonCaliforniaNational
      Air quality index405542
      Pollution index7,123,51010,473,1902,726,193

      American Canyon air quality

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.110%
      Benzene0.070%
      Carbon Tetrachloride0.000%
      Lead0.090%
      Mercury0.050%

      Average monthly American Canyon temperature with heat index

      American Canyon monthly precipitation with daily maximum

      American Canyon monthly snow depth with daily maximum

      American Canyon monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fetters Hot Springs-Agua Caliente, CA3,5543530.0%
      Green Valley, CA1,5833530.0%
      Boyes Hot Springs, CA8,0063530.0%
      Sonoma, CA11,0823530.0%
      Eldridge, CA9603530.0%
      American Canyon, CA20,2564020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Rosamond, CA20,2556734.0%
      Columbia Heights, MN20,247468.0%
      Tukwila, WA20,2654510.0%
      Agoura Hills, CA20,2697244.0%
      Rolla, MO20,2733922.0%
      American Canyon, CA20,2564020.0%
      Source: The American Canyon, 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.