TODAY NOV21
TEMPERATURE49
HUMIDITY90
PRESSURE99760
WIND COND.40 18.4
  • 4836Fri30%60%
  • 5040Sat50%
  • 5338Sun
  • 5541Mon
  • 5636Tue
daynightWeather update from Islip, Long Island Mac Arthur Airport at
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Weather Quick Facts

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

Compare Central Islip, NY Weather

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      Central Islip 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"

      Central Islip 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.
      IndexCentral IslipNew YorkNational
      Air quality index434342
      Pollution index39,208,8006,179,2752,726,193

      Central Islip 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 Central Islip temperature with heat index

      Central Islip monthly precipitation with daily maximum

      Central Islip monthly snow depth with daily maximum

      Central Islip monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bellport, NY1,8994314.0%
      Dix Hills, NY23,9954314.0%
      North Patchogue, NY8,2024314.0%
      Gordon Heights, NY4,1794314.0%
      Sound Beach, NY7,0804314.0%
      Central Islip, NY33,5914314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mason, OH33,592548.0%
      Deer Park, TX33,599524.0%
      Huntington Station, NY33,6124314.0%
      DeLand, FL33,6203726.0%
      Myrtle Beach, SC33,6381472.0%
      Central Islip, NY33,5914314.0%
      Source: The Central Islip, 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.