Roslyn Harbor, NY Weather - Forecast & Monthly Averages

TEMPERATURE	72
HUMIDITY	38
PRESSURE	101660
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Roslyn Harbor for July is 78.8 degrees
The lowest monthly average temperature in Roslyn Harbor for January is 34.5 degrees
The most monthly precipitation in Roslyn Harbor occurs in October with 5.1 inches
The air quality index in Roslyn Harbor is 21% worse than the national average
The pollution index in Roslyn Harbor is 720% worse than the national average

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Roslyn Harbor 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	27°F	43°F	34°F	3.5"
February	27°F	44°F	35°F	2.9"
March	34°F	53°F	42°F	3.8"
April	45°F	65°F	53°F	4.4"
May	54°F	74°F	63°F	4.2"
June	64°F	83°F	73°F	4.9"
July	71°F	89°F	79°F	4.3"
August	70°F	86°F	77°F	5.0"
September	64°F	80°F	71°F	3.3"
October	53°F	69°F	60°F	5.1"
November	42°F	58°F	49°F	3.2"
December	34°F	48°F	40°F	4.9"

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Roslyn Harbor 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	Roslyn Harbor	New York	National
Air quality index	51	43	42
Pollution index	22,367,000	6,179,275	2,726,193

Roslyn Harbor air quality

Measurement	Total
Days measured	365
Days with good air quality	169
Days with moderate air quality	180
Days w/ poor A.Q. for sensitive groups	16
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.040%
Benzene	0.180%
Carbon Tetrachloride	0.070%
Lead	0.050%
Mercury	0.050%

Average monthly Roslyn Harbor temperature with heat index

Roslyn Harbor monthly precipitation with daily maximum

Roslyn Harbor monthly snow depth with daily maximum

Roslyn Harbor monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Asharoken, NY	586	43	14.0%
Halesite, NY	2,483	43	14.0%
Lloyd Harbor, NY	3,663	43	14.0%
Centerport, NY	5,773	43	14.0%
Huntington, NY	19,438	43	14.0%
Roslyn Harbor, NY	1,014	51	2.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Dubach, LA	1,014	35	30.0%
Wurtsboro, NY	1,014	36	28.0%
Milford Center, OH	1,014	45	10.0%
Midway, PA	1,014	42	16.0%
Speers, PA	1,014	56	12.0%
Roslyn Harbor, NY	1,014	51	2.0%

Source: The Roslyn Harbor, 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.