TODAY DEC04
TEMPERATURE47
HUMIDITY42
PRESSURE30.16
WIND COND.220 11.2
  • 5242Fri60%
  • 4533Sat80%50%
  • 4127Sun
  • 4027Mon
  • 4129Tue
daynightWeather update from Farmingdale - Republic Airport at

Key findings

  • The highest monthly average temperature in Brentwood for July is 74 degrees
  • The lowest monthly average temperature in Brentwood for February is 32 degrees
  • The most monthly precipitation in Brentwood occurs in October with 6.9 inches
  • The air quality index in Brentwood is 14% better than the national average
  • The pollution index in Brentwood is 674% worse than the national average

Compare Brentwood, NY 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
      January25°F40°F32°F3.4"
      February25°F40°F32°F3.7"
      March31°F48°F39°F4.8"
      April41°F60°F50°F5.6"
      May50°F68°F58°F3.9"
      June61°F78°F69°F4.3"
      July67°F83°F74°F5.4"
      August66°F82°F74°F3.1"
      September59°F76°F67°F4.1"
      October48°F65°F56°F6.9"
      November39°F55°F47°F4.0"
      December30°F44°F37°F6.2"

      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.
      IndexBrentwoodNew YorkNational
      Air quality index434350
      Pollution index39,208,8009,373,0575,066,862

      Brentwood air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality262
      Days with moderate air quality82
      Days w/ poor A.Q. for sensitive groups18
      Days with unhealthy air quality3

      Brentwood air quality information

      PollutantTotal
      Arsenic0.060%
      Benzene0.320%
      Carbon Tetrachloride0.020%
      Lead0.320%
      Mercury0.130%

      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

      City, StatePopulationAir Quality IndexNational Avg.
      Bayport, NY8,1744314%
      Dix Hills, NY27,4034314%
      Patchogue, NY12,2934314%
      Sound Beach, NY8,0014314%
      East Northport, NY19,3734314%
      Brentwood, NY61,4384314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Wellington, FL61,3713628%
      Utica, NY61,3372746%
      West Des Moines, IA61,6243922%
      La Habra, CA61,6607244%
      Tulare, CA61,6646632%
      Brentwood, NY61,4384314%
      Source: The Brentwood, NY 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.