TODAY MAR28
TEMPERATURE48
HUMIDITY89
PRESSURE101250
WIND COND.320 14.8
  • 5436Fri
  • 5743Sat
  • 5940Sun
  • 5241Mon40%40%
  • 4941Tue80%70%
daynightWeather update from Farmingdale - Republic Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Old Brookville for July is 75.7 degrees
  • The lowest monthly average temperature in Old Brookville for January is 33 degrees
  • The most monthly precipitation in Old Brookville occurs in December with 4.5 inches
  • The air quality index in Old Brookville is 21% worse than the national average
  • The pollution index in Old Brookville is 720% worse than the national average

Compare Old Brookville, NY Weather

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      Old Brookville 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°F41°F33°F2.7"
      February25°F42°F33°F2.3"
      March32°F50°F40°F3.3"
      April42°F60°F51°F3.7"
      May52°F70°F60°F3.4"
      June61°F78°F69°F4.3"
      July68°F84°F76°F3.2"
      August66°F83°F74°F3.4"
      September60°F76°F68°F3.2"
      October50°F66°F57°F3.5"
      November39°F55°F47°F2.5"
      December32°F46°F39°F4.5"

      Old Brookville 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.
      IndexOld BrookvilleNew YorkNational
      Air quality index514342
      Pollution index22,367,0006,179,2752,726,193

      Old Brookville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality169
      Days with moderate air quality180
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality0

      Old Brookville air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.180%
      Carbon Tetrachloride0.070%
      Lead0.050%
      Mercury0.050%

      Average monthly Old Brookville temperature with heat index

      Old Brookville monthly precipitation with daily maximum

      Old Brookville monthly snow depth with daily maximum

      Old Brookville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Glenville, CT2,9764314.0%
      Darien, CT21,5194314.0%
      Dix Hills, NY23,9954314.0%
      Eatons Neck, NY1,2934314.0%
      Huntington, NY19,4384314.0%
      Old Brookville, NY1,791512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Richland, PA1,7914216.0%
      Orkney No. 244, SK1,791n/a 
      Bethlehem Village, CT1,7923726.0%
      Epworth, IA1,7922942.0%
      French Lick, IN1,792688.0%
      Old Brookville, NY1,791512.0%
      Source: The Old Brookville, 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.