TODAY DEC22
TEMPERATURE53
HUMIDITY100
PRESSURE102100
WIND COND.
  • 5754Sun90%
  • 5952Mon40%100%
  • 5542Tue90%
  • 5547
  • 5549Thu
daynightWeather update from Santa Rosa, Santa Rosa Sonoma County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Monte Rio for July is 64.9 degrees
  • The lowest monthly average temperature in Monte Rio for December is 46.1 degrees
  • The most monthly precipitation in Monte Rio occurs in December with 6.9 inches
  • The air quality index in Monte Rio is 19% better than the national average
  • The pollution index in Monte Rio is 190% worse than the national average

Compare Monte Rio, CA Weather

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      Monte Rio 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°F60°F46°F6.0"
      February39°F64°F50°F5.7"
      March41°F67°F52°F4.6"
      April43°F71°F55°F2.4"
      May46°F77°F60°F1.1"
      June50°F83°F64°F0.4"
      July52°F85°F65°F0.0"
      August52°F84°F64°F0.0"
      September49°F85°F64°F0.2"
      October46°F78°F59°F2.0"
      November41°F67°F52°F3.2"
      December36°F59°F46°F6.9"

      Monte Rio 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.
      IndexMonte RioCaliforniaNational
      Air quality index345542
      Pollution index7,898,29010,473,1902,726,193

      Monte Rio air quality

      MeasurementTotal
      Days measured365
      Days with good air quality346
      Days with moderate air quality18
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality1

      Air quality details

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

      Average monthly Monte Rio temperature with heat index

      Monte Rio monthly precipitation with daily maximum

      Monte Rio monthly snow depth with daily maximum

      Monte Rio monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bloomfield, CA2433432.0%
      Cazadero, CA3403432.0%
      Healdsburg, CA11,9243432.0%
      Sebastopol, CA7,6643432.0%
      Windsor, CA27,6353432.0%
      Monte Rio, CA1,0233432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Otterbein, IN1,0234216.0%
      Exeter, MO1,0231864.0%
      Orient, NY1,0233726.0%
      Emerald Bay, TX1,0233628.0%
      Chester, VT1,0233432.0%
      Monte Rio, CA1,0233432.0%
      Source: The Monte Rio, 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.