TODAY JUN25
TEMPERATURE73
HUMIDITY61
PRESSURE29.96
WIND COND.340 13.9
  • 7563Tue
  • 7668Wed40%
  • 7970Thu60%
  • 8772Fri
  • 8872Sat
daynightWeather update from Farmingdale - Republic Airport at

Syosset Average Weather

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
January3°F71°F34°F3.3"
February9°F68°F33°F2.1"
March10°F76°F39°F2.6"
April27°F87°F50°F4.9"
May34°F88°F58°F2.7"
June46°F96°F69°F4.0"
July55°F95°F74°F4.1"
August54°F97°F74°F2.9"
September43°F92°F67°F3.1"
October33°F88°F56°F6.5"
November22°F70°F48°F3.2"
December13°F64°F38°F4.2"

Did you know?

  • The highest monthly average temperature in Syosset for July is 74 degrees.
  • The lowest monthly average temperature in Syosset for February is 33 degrees.
  • The most monthly precipitation in Syosset occurs in October with 6.5 inches.
  • The air quality index in Syosset is 6% worse than the national average.
  • The pollution index in Syosset is 341% worse than the national average.

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Compare Syosset, NY Weather To Other Cities

Syosset 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.
IndexSyossetNew YorkNational
Air quality index534350
Pollution index22,367,0009,373,0575,066,862

Syosset air quality information

MeasurementTotal
Days measured365
Days with good air quality161
Days with moderate air quality189
Days w/ poor A.Q. for sensitive groups15
Days with unhealthy air quality

Syosset air quality information

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

Average monthly Syosset temperature with heat index

Syosset monthly precipitation with daily maximum

Syosset monthly snow depth with daily maximum

Syosset monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Huntington Station, NY34,565476%
Laurel Hollow, NY1,929476%
Lloyd Harbor, NY3,696476%
West Bay Shore, NY4,803476%
West Islip, NY27,231476%
Syosset, NY19,232536%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
West Hempstead, NY19,229536%
Fernley, NV19,2284314%
Angleton, TX19,245524%
Forest Lake, MN19,2084412%
Broadview Heights, OH19,2575510%
Syosset, NY19,232536%
Source: The Syosset, 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.