Central Islip, NY Weather - Forecast & Monthly Averages

TEMPERATURE	20
HUMIDITY	47
PRESSURE	102980
WIND COND.	350 27.7

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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

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	24°F	41°F	32°F	4.0"
February	24°F	43°F	33°F	3.0"
March	31°F	50°F	40°F	4.2"
April	41°F	61°F	50°F	3.5"
May	51°F	71°F	60°F	3.6"
June	60°F	79°F	69°F	4.7"
July	68°F	85°F	76°F	3.1"
August	65°F	83°F	74°F	5.6"
September	60°F	78°F	68°F	3.1"
October	49°F	67°F	58°F	4.1"
November	37°F	56°F	46°F	3.0"
December	31°F	47°F	39°F	4.9"

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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.
Index	Central Islip	New York	National
Air quality index	43	43	42
Pollution index	39,208,800	6,179,275	2,726,193

Central Islip air quality

Measurement	Total
Days measured	365
Days with good air quality	262
Days with moderate air quality	82
Days w/ poor A.Q. for sensitive groups	18
Days with unhealthy air quality	3

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.320%
Carbon Tetrachloride	0.020%
Lead	0.320%
Mercury	0.130%

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

City	Population	Air Quality Index	National Avg.
Rocky Point, NY	13,138	43	14.0%
Centerport, NY	5,773	43	14.0%
Elwood, NY	11,582	43	14.0%
Huntington, NY	19,438	43	14.0%
Lloyd Harbor, NY	3,663	43	14.0%
Central Islip, NY	33,591	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Mason, OH	33,592	54	8.0%
Deer Park, TX	33,599	52	4.0%
Huntington Station, NY	33,612	43	14.0%
DeLand, FL	33,620	37	26.0%
Myrtle Beach, SC	33,638	14	72.0%
Central Islip, NY	33,591	43	14.0%

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.