TODAY APR25
TEMPERATURE54°F
HUMIDITY100%
PRESSURE29.97 inHg
WIND COND.120° 19.6 mph
  • 6446Thu
  • 5947Fri50% | 40%
  • 6343Sat
  • 5738Sun
  • 6045Mon
daynightWeather update from Islip, Long Island Mac Arthur Airport, on 25 Apr 07:56 am EDT

Mount Sinai 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
January15°F66°F38°Fn/a
February16°F60°F35°Fn/a
March15°F66°F41°Fn/a
April30°F83°F50°Fn/a
May37°F80°F58°Fn/a
June53°F94°F70°Fn/a
July57°F106°F75°Fn/a
August57°F101°F74°Fn/a
September46°F85°F69°Fn/a
October37°F84°F60°Fn/a
November26°F72°F48°Fn/a
December20°F66°F40°Fn/a

Did you know?

  • The highest monthly average temperature in Mount Sinai for July is 75 degrees.
  • The lowest monthly average temperature in Mount Sinai for February is 35 degrees.
  • The most monthly precipitation in Mount Sinai occurs in January with 0 inches.
  • The air quality index in Mount Sinai is 5% better than the national average.
  • The pollution index in Mount Sinai is 673% worse than the national average.

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Compare Mount Sinai, NY Weather To Other Cities

Mount Sinai 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.
IndexMount SinaiNew YorkNational
Air quality index474350
Pollution index39,208,8009,373,0575,066,862

Mount Sinai 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

Mount Sinai air quality information

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

Average monthly Mount Sinai temperature with heat index

Mount Sinai monthly precipitation with daily maximum

Mount Sinai monthly snow depth with daily maximum

Mount Sinai monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bayport, NY8,174476%
Bellport, NY2,005476%
Brookhaven, NY3,605476%
Central Islip, NY34,724476%
East Moriches, NY5,272476%
Mount Sinai, NY12,362476%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Beatrice, NE12,3583432%
Woodland Park, NJ12,358536%
Glenpool, OK12,351484%
Port Lavaca, TX12,3742746%
Plover, WI12,3503628%
Mount Sinai, NY12,362476%
Source: The Mount Sinai, 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.