Belfast, NY Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Belfast for August is 68.7 degrees
The lowest monthly average temperature in Belfast for February is 20.3 degrees
The most monthly precipitation in Belfast occurs in August with 9.4 inches
The air quality index in Belfast is 7% better than the national average
The pollution index in Belfast is 6% worse than the national average

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Belfast 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	17°F	32°F	24°F	4.1"
February	14°F	28°F	20°F	1.7"
March	21°F	38°F	28°F	2.3"
April	34°F	54°F	43°F	3.8"
May	44°F	67°F	55°F	1.7"
June	56°F	78°F	67°F	5.2"
July	58°F	79°F	68°F	4.2"
August	59°F	81°F	69°F	9.4"
September	52°F	74°F	62°F	5.5"
October	46°F	62°F	53°F	5.2"
November	32°F	48°F	39°F	5.5"
December	21°F	32°F	26°F	3.0"

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Belfast 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	Belfast	New York	National
Air quality index	39	43	42
Pollution index	2,885,140	6,179,275	2,726,193

Belfast air quality

Measurement	Total
Days measured	365
Days with good air quality	308
Days with moderate air quality	57
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.004%
Benzene	0.030%
Carbon Tetrachloride	0.005%
Lead	0.010%
Mercury	0.002%

Average monthly Belfast temperature with heat index

Belfast monthly precipitation with daily maximum

Belfast monthly snow depth with daily maximum

Belfast monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Angelica, NY	715	35	30.0%
Wellsville, NY	4,397	35	30.0%
Scio, NY	688	35	30.0%
Friendship, NY	854	35	30.0%
Belmont, NY	797	35	30.0%
Belfast, NY	752	39	22.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Woodhull, IL	752	46	8.0%
Fostoria, MI	752	38	24.0%
Chippewa Lake, OH	752	43	14.0%
Rossiter, PA	752	33	34.0%
Stoneboro, PA	752	31	38.0%
Belfast, NY	752	39	22.0%

Source: The Belfast, 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.