TODAY APR18
TEMPERATURE61
HUMIDITY81
PRESSURE101560
WIND COND.90 7.6
  • 6951Fri
  • 6854Sat
  • 7354Sun
  • 6850Mon
  • 6249Tue
daynightWeather update from Santa Monica, Santa Monica Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Brentwood for August is 72.5 degrees
  • The lowest monthly average temperature in Brentwood for December is 57 degrees
  • The most monthly precipitation in Brentwood occurs in January with 3.5 inches
  • The air quality index in Brentwood is 71% worse than the national average
  • The pollution index in Brentwood is 5017% worse than the national average

Compare Los Angeles, CA Weather

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      Brentwood 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°F70°F58°F3.5"
      February50°F70°F59°F2.9"
      March52°F72°F61°F1.5"
      April55°F74°F63°F0.7"
      May58°F75°F65°F0.5"
      June61°F78°F68°F0.0"
      July65°F83°F72°F0.0"
      August65°F84°F73°F0.0"
      September64°F85°F72°F0.3"
      October60°F81°F69°F0.7"
      November54°F75°F63°F0.8"
      December48°F69°F57°F2.8"

      Brentwood 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.
      IndexBrentwoodLos AngelesCalifornia
      Air quality index727255
      Pollution index139,490,000139,490,00010,473,190

      Brentwood air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality66
      Days with moderate air quality208
      Days w/ poor A.Q. for sensitive groups62
      Days with unhealthy air quality28

      Brentwood air quality information

      PollutantTotal
      Arsenic0.200%
      Benzene0.950%
      Carbon Tetrachloride0.080%
      Lead1.320%
      Mercury0.440%

      Average monthly Brentwood temperature with heat index

      Brentwood monthly precipitation with daily maximum

      Brentwood monthly snow depth with daily maximum

      Brentwood monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gardena, CA59,4017244.0%
      Westmont, CA35,1887244.0%
      Beverly Hills, CA33,7097244.0%
      San Fernando, CA24,2447244.0%
      West Hollywood, CA35,5067244.0%
      Los Angeles, CA3,973,2787244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Toronto, ON3,013,752n/a 
      Chicago, IL2,699,3475510.0%
      Houston, TX2,313,238524.0%
      Montréal, QC1,811,008n/a 
      Phoenix, AZ1,658,4227448.0%
      Los Angeles, CA3,973,2787244.0%
      Source: The Brentwood, Los Angeles, 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.