TODAY NOV21
TEMPERATURE41
HUMIDITY46
PRESSURE30.06
WIND COND.240 11.4
  • 2511
  • 3526Fri
  • 5342Sat80%
  • 5341Sun80%
  • 5237Mon70%50%
daynightWeather update from Shirley, Brookhaven Airport at

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Brookhaven 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
January26°F41°F33°F5.8"
February22°F39°F30°F4.5"
March28°F47°F37°F6.7"
April38°F58°F47°F9.1"
May47°F68°F57°F5.1"
June60°F78°F68°F1.8"
July65°F82°F73°F6.2"
August65°F83°F74°F3.2"
September57°F79°F68°F3.0"
October50°F67°F58°F9.6"
November36°F55°F46°F5.3"
December28°F43°F35°F6.2"

Did you know?

  • The highest monthly average temperature in Brookhaven for August is 74 degrees.
  • The lowest monthly average temperature in Brookhaven for February is 30 degrees.
  • The most monthly precipitation in Brookhaven occurs in October with 9.6 inches.
  • The air quality index in Brookhaven is 5% better than the national average.
  • The pollution index in Brookhaven is 673% worse than the national average.

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Compare Brookhaven, NY Weather To Other Cities

Brookhaven 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.
IndexBrookhavenNew YorkNational
Air quality index474350
Pollution index39,208,8009,373,0575,066,862

Brookhaven air quality information

MeasurementTotal
Days measured365
Days with good air quality200
Days with moderate air quality146
Days w/ poor A.Q. for sensitive groups18
Days with unhealthy air quality1

Brookhaven air quality information

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

Average monthly Brookhaven temperature with heat index

Brookhaven monthly precipitation with daily maximum

Brookhaven monthly snow depth with daily maximum

Brookhaven monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Center Moriches, NY8,485476%
East Moriches, NY5,272476%
Farmingville, NY15,363476%
Head of the Harbor, NY1,348476%
Islip Terrace, NY5,302476%
Brookhaven, NY3,605476%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Clinton, CT3,605492%
Port Monmouth, NJ3,606536%
Lake Isabella, CA3,6067958%
Columbus, TX3,6042746%
Bayport, MN3,6044412%
Brookhaven, NY3,605476%
Source: The Brookhaven, 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.