TODAY NOV07
TEMPERATURE45
HUMIDITY49
PRESSURE102000
WIND COND. 5.4
  • 7342Thu
  • 7242Fri
  • 6845Sat
  • 6947Sun
  • 6341
daynightWeather update from Napa, Napa County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Oakville for July is 64.6 degrees
  • The lowest monthly average temperature in Oakville for December is 46.6 degrees
  • The most monthly precipitation in Oakville occurs in January with 3.8 inches
  • The air quality index in Oakville is 17% better than the national average
  • The pollution index in Oakville is 190% worse than the national average

Compare Oakville, CA Weather

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      Oakville 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"

      Oakville 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.
      IndexOakvilleCaliforniaNational
      Air quality index355542
      Pollution index7,898,29010,473,1902,726,193

      Oakville air quality

      MeasurementTotal
      Days measured363
      Days with good air quality330
      Days with moderate air quality31
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.260%
      Benzene0.080%
      Carbon Tetrachloride0.005%
      Lead0.240%
      Mercury0.270%

      Average monthly Oakville temperature with heat index

      Oakville monthly precipitation with daily maximum

      Oakville monthly snow depth with daily maximum

      Oakville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Angwin, CA3,4153432.0%
      Kenwood, CA5403432.0%
      St. Helena, CA6,0493432.0%
      Penngrove, CA2,3683432.0%
      Calistoga, CA5,3463432.0%
      Oakville, CA743530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Port Alexander, AK742060.0%
      Willow Creek, AK743138.0%
      Woodruff, AZ744412.0%
      Hornitos, CA74484.0%
      Blairstown, MO74476.0%
      Oakville, CA743530.0%
      Source: The Oakville, 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.