TODAY OCT09
TEMPERATURE63
HUMIDITY93
PRESSURE101260
WIND COND.281
  • 7763Wed
  • 7763Thu
  • 8064Fri
  • 7661Sat
  • 7160Sun
daynightWeather update from EW3219 National City at
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Weather Quick Facts

  • The highest monthly average temperature in Chula Vista for September is 67.9 degrees
  • The lowest monthly average temperature in Chula Vista for December is 55.1 degrees
  • The most monthly precipitation in Chula Vista occurs in February with 3.8 inches
  • The air quality index in Chula Vista is 52% worse than the national average
  • The pollution index in Chula Vista is 1581% worse than the national average

Compare Chula Vista, CA Weather

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      Chula 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
      January48°F64°F55°F2.8"
      February49°F64°F56°F3.8"
      March51°F65°F58°F0.1"
      April53°F66°F59°F0.0"
      May57°F67°F62°F1.5"
      June60°F68°F63°F0.0"
      July63°F72°F67°F0.0"
      August64°F73°F68°F0.0"
      September63°F74°F68°F0.3"
      October58°F72°F64°F0.0"
      November53°F69°F60°F0.1"
      December48°F64°F55°F1.5"

      Chula 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.
      IndexChula VistaCaliforniaNational
      Air quality index645542
      Pollution index45,820,50010,473,1902,726,193

      Chula Vista air quality

      MeasurementTotal
      Days measured365
      Days with good air quality87
      Days with moderate air quality253
      Days w/ poor A.Q. for sensitive groups23
      Days with unhealthy air quality2

      Air quality details

      PollutantTotal
      Arsenic1.130%
      Benzene0.410%
      Carbon Tetrachloride0.030%
      Lead0.600%
      Mercury0.080%

      Average monthly Chula Vista temperature with heat index

      Chula Vista monthly precipitation with daily maximum

      Chula Vista monthly snow depth with daily maximum

      Chula Vista monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Coronado, CA24,5266428.0%
      Lemon Grove, CA26,7396428.0%
      Spring Valley, CA31,8666428.0%
      El Cajon, CA103,2496428.0%
      La Mesa, CA60,2086428.0%
      Chula Vista, CA268,7796428.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Fort Wayne, IN268,3784510.0%
      Irvine, CA272,6948978.0%
      St. Petersburg, FL264,0014314.0%
      Jersey City, NJ262,652512.0%
      Toledo, OH275,1164020.0%
      Chula Vista, CA268,7796428.0%
      Source: The Chula 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.