Keystone, WV Weather - Forecast & Monthly Averages

TEMPERATURE	34
HUMIDITY	100
PRESSURE	102070
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Keystone for July is 72.3 degrees
The lowest monthly average temperature in Keystone for January is 34.5 degrees
The most monthly precipitation in Keystone occurs in July with 5 inches
The air quality index in Keystone is 601% worse than the national average
The pollution index in Keystone is 76% better than the national average

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Keystone 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	44°F	35°F	3.0"
February	27°F	46°F	35°F	2.1"
March	36°F	56°F	45°F	3.8"
April	46°F	68°F	56°F	4.4"
May	53°F	74°F	63°F	4.5"
June	61°F	81°F	70°F	3.9"
July	64°F	82°F	72°F	5.0"
August	64°F	82°F	72°F	3.7"
September	57°F	76°F	66°F	2.9"
October	47°F	67°F	56°F	3.3"
November	37°F	57°F	46°F	2.5"
December	31°F	48°F	39°F	3.6"

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Keystone 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	Keystone	West Virginia	National
Air quality index	295	126	42
Pollution index	655,580	1,996,538	2,726,193

Keystone air quality

Measurement	Total
Days measured	120
Days with good air quality	106
Days with moderate air quality	14
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Air quality details

Pollutant	Total
Arsenic	0.100%
Benzene	0.010%
Carbon Tetrachloride	0.003%
Lead	0.010%
Mercury	0.005%

Average monthly Keystone temperature with heat index

Keystone monthly precipitation with daily maximum

Keystone monthly snow depth with daily maximum

Keystone monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Vivian, WV	0	295	490.0%
Berwind, WV	221	295	490.0%
Brenton, WV	106	295	490.0%
Bluefield, VA	4,832	295	490.0%
Gary, WV	650	295	490.0%
Keystone, WV	84	295	490.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Blue Springs, AL	84	35	30.0%
Graham, AL	84	38	24.0%
Moccasin, AZ	84	44	12.0%
Sierra City, CA	84	44	12.0%
Joes, CO	84	58	16.0%
Keystone, WV	84	295	490.0%

Source: The Keystone, WV 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.