TODAY NOV30
TEMPERATURE59
HUMIDITY42
PRESSURE30.16
WIND COND.20 5.4
  • 7850Tue
  • 7649Wed
  • 7348Thu
  • 7447Fri
  • 7447Sat
daynightWeather update from Santa Ana, John Wayne Airport-Orange County Airport at

Key findings

  • The highest monthly average temperature in Tustin for August is 72 degrees
  • The lowest monthly average temperature in Tustin for December is 57 degrees
  • The most monthly precipitation in Tustin occurs in December with 2.4 inches
  • The air quality index in Tustin is 79% worse than the national average
  • The pollution index in Tustin is 772% worse than the national average

Compare Tustin, CA Weather

      vs
      How would you rate the weather in Tustin?
      Write a review to give others more information about this area.
      How would you rate the air quality in Tustin?
      Write a review to give others more information about this area.
      See all Tustin poll results

      Tustin 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°F69°F57°F2.3"
      February49°F69°F58°F1.9"
      March52°F70°F60°F0.9"
      April54°F72°F62°F0.6"
      May59°F73°F65°F0.3"
      June62°F76°F67°F0.0"
      July66°F80°F71°F0.1"
      August66°F82°F72°F0.0"
      September65°F82°F72°F0.2"
      October60°F79°F68°F0.5"
      November54°F75°F63°F0.7"
      December48°F68°F57°F2.4"

      Tustin 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.
      IndexTustinCaliforniaNational
      Air quality index895550
      Pollution index44,192,60018,106,7265,066,862

      Tustin air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality42
      Days with moderate air quality178
      Days w/ poor A.Q. for sensitive groups79
      Days with unhealthy air quality58

      Tustin air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.280%
      Carbon Tetrachloride0.001%
      Lead0.220%
      Mercury0.140%

      Average monthly Tustin temperature with heat index

      Tustin monthly precipitation with daily maximum

      Tustin monthly snow depth with daily maximum

      Tustin monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      La Habra, CA61,6607244%
      Santa Fe Springs, CA17,4367244%
      Fountain Valley, CA56,6707244%
      Midway City, CA9,2357244%
      Cerritos, CA49,7977244%
      Tustin, CA79,3968978%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lawrence, MA79,3373726%
      New Rochelle, NY79,299512%
      Somerville, MA79,5074314%
      Napa, CA79,5673530%
      Melbourne, FL78,9113628%
      Tustin, CA79,3968978%
      Source: The Tustin, 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.