TODAY MAR08
TEMPERATURE69
HUMIDITY31
PRESSURE30.02
WIND COND.2
  • 6041Mon20%20%
  • 5842Tue70%60%
  • 5738Wed60%
  • 6339Thu
  • 6640Fri
daynightWeather update from Fairfield / Travis Air Force Base at

Key findings

  • The highest monthly average temperature in Rio Vista for July is 71 degrees
  • The lowest monthly average temperature in Rio Vista for December is 46 degrees
  • The most monthly precipitation in Rio Vista occurs in January with 8.6 inches
  • The air quality index in Rio Vista is 10% better than the national average
  • The pollution index in Rio Vista is 52% better than the national average

Compare Rio Vista, CA Weather

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      Rio Vista 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
      January37°F58°F46°F8.6"
      February40°F63°F50°F6.8"
      March43°F67°F54°F6.5"
      April46°F72°F58°F4.4"
      May51°F79°F63°F2.6"
      June55°F87°F69°F5.0"
      July57°F90°F71°F3.3"
      August57°F89°F70°F3.3"
      September55°F89°F69°F4.3"
      October49°F79°F63°F5.1"
      November42°F67°F53°F4.2"
      December36°F58°F46°F6.4"

      Rio Vista 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.
      IndexRio VistaCaliforniaNational
      Air quality index455550
      Pollution index2,457,15018,106,7265,066,862

      Rio Vista air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality229
      Days with moderate air quality123
      Days w/ poor A.Q. for sensitive groups12
      Days with unhealthy air quality1

      Rio Vista air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.080%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.020%

      Average monthly Rio Vista temperature with heat index

      Rio Vista monthly precipitation with daily maximum

      Rio Vista monthly snow depth with daily maximum

      Rio Vista monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Vacaville, CA95,6073530%
      Elmira, CA2083530%
      Pittsburg, CA67,9984020%
      Bay Point, CA23,1314020%
      Knightsen, CA1,6064510%
      Rio Vista, CA8,0554510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Fairwood CDP (Spokane County), WA8,0554510%
      Brookhaven, PA8,056512%
      Hailey, ID8,0582060%
      Ludington, MI8,0513824%
      Rayne, LA8,0514118%
      Rio Vista, CA8,0554510%
      Source: The Rio Vista, 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.