TODAY DEC22
TEMPERATURE21
HUMIDITY47
PRESSURE103050
WIND COND.340 24.1
  • 3226Mon
  • 4124Tue40%
  • 3725
  • 4027Thu
  • 4129Fri
daynightWeather update from Islip, Long Island Mac Arthur Airport at
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Weather Quick Facts

  • The highest monthly average temperature in West Sayville for July is 75.9 degrees
  • The lowest monthly average temperature in West Sayville for January is 32.3 degrees
  • The most monthly precipitation in West Sayville occurs in August with 5.6 inches
  • The air quality index in West Sayville is 2% worse than the national average
  • The pollution index in West Sayville is 1338% worse than the national average

Compare West Sayville, NY Weather

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      West Sayville 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
      January24°F41°F32°F4.0"
      February24°F43°F33°F3.0"
      March31°F50°F40°F4.2"
      April41°F61°F50°F3.5"
      May51°F71°F60°F3.6"
      June60°F79°F69°F4.7"
      July68°F85°F76°F3.1"
      August65°F83°F74°F5.6"
      September60°F78°F68°F3.1"
      October49°F67°F58°F4.1"
      November37°F56°F46°F3.0"
      December31°F47°F39°F4.9"

      West Sayville 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.
      IndexWest SayvilleNew YorkNational
      Air quality index434342
      Pollution index39,208,8006,179,2752,726,193

      West Sayville air quality

      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

      Air quality details

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

      Average monthly West Sayville temperature with heat index

      West Sayville monthly precipitation with daily maximum

      West Sayville monthly snow depth with daily maximum

      West Sayville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bohemia, NY9,3294314.0%
      East Patchogue, NY22,0164314.0%
      Patchogue, NY12,3894314.0%
      East Shoreham, NY7,0904314.0%
      Medford, NY24,6134314.0%
      West Sayville, NY4,9564314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Watseka, IL4,9564216.0%
      Keyser, WV4,9563628.0%
      Barling, AR4,9573628.0%
      Needles, CA4,9591374.0%
      Perry, OK4,9594020.0%
      West Sayville, NY4,9564314.0%
      Source: The West Sayville, 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.