Harpers Ferry, WV Weather - Forecast & Monthly Averages

TEMPERATURE	50
HUMIDITY	52
PRESSURE	101560
WIND COND.	300 13

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Weather Quick Facts

The highest monthly average temperature in Harpers Ferry for July is 75.8 degrees
The lowest monthly average temperature in Harpers Ferry for January is 32.7 degrees
The most monthly precipitation in Harpers Ferry occurs in May with 4.5 inches
The air quality index in Harpers Ferry is 5% better than the national average
The pollution index in Harpers Ferry is 67% better than the national average

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Harpers Ferry 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	43°F	33°F	2.3"
February	25°F	45°F	34°F	1.7"
March	33°F	56°F	43°F	2.9"
April	42°F	68°F	55°F	3.7"
May	51°F	76°F	63°F	4.5"
June	60°F	84°F	72°F	3.9"
July	64°F	88°F	76°F	3.3"
August	62°F	86°F	74°F	3.1"
September	56°F	80°F	67°F	3.3"
October	45°F	68°F	56°F	4.2"
November	35°F	57°F	45°F	2.4"
December	28°F	47°F	37°F	3.2"

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Harpers Ferry 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	Harpers Ferry	West Virginia	National
Air quality index	40	126	42
Pollution index	909,202	1,996,538	2,726,193

Harpers Ferry air quality

Measurement	Total
Days measured	362
Days with good air quality	306
Days with moderate air quality	54
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.020%
Mercury	0.001%

Average monthly Harpers Ferry temperature with heat index

Harpers Ferry monthly precipitation with daily maximum

Harpers Ferry monthly snow depth with daily maximum

Harpers Ferry monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Purcellville, VA	10,063	38	24.0%
Middleway, WV	396	38	24.0%
Round Hill, VA	695	38	24.0%
Ranson, WV	5,217	38	24.0%
Hamilton, VA	708	38	24.0%
Harpers Ferry, WV	334	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Eckley, CO	334	45	10.0%
Kapalua, HI	334	15	70.0%
Crawfordsville, IA	334	32	36.0%
Letts, IA	334	32	36.0%
Bazine, KS	334	15	70.0%
Harpers Ferry, WV	334	40	20.0%

Source: The Harpers Ferry, 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.