TODAY MAR19
TEMPERATURE
HUMIDITY41
PRESSURE30.31
WIND COND.310 4.7
  • 5027Tue
  • 5838Wed
  • 5034Thu40%
  • 5232Fri
  • 6035Sat
daynightWeather update from Bluefield, Mercer County Airport at

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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.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January27°F44°F35°F3.0"
February27°F46°F35°F2.1"
March36°F56°F45°F3.8"
April46°F68°F56°F4.4"
May53°F74°F63°F4.5"
June61°F81°F70°F3.9"
July64°F82°F72°F5.0"
August64°F82°F72°F3.7"
September57°F76°F66°F2.9"
October47°F67°F56°F3.3"
November37°F57°F46°F2.5"
December31°F48°F39°F3.6"

Did you know?

  • The highest monthly average temperature in Keystone for July is 72 degrees.
  • The lowest monthly average temperature in Keystone for January is 35 degrees.
  • The most monthly precipitation in Keystone occurs in July with 5 inches.
  • The air quality index in Keystone is 493% worse than the national average.
  • The pollution index in Keystone is 87% better than the national average.

Real Estate Listings In Keystone

Compare Keystone, WV Weather To Other Cities

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.
IndexKeystoneWest VirginiaNational
Air quality index29512650
Pollution index655,5802,657,8115,066,862

Keystone air quality information

MeasurementTotal
Days measured120
Days with good air quality106
Days with moderate air quality14
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Keystone air quality information

PollutantTotal
Arsenic0.100%
Benzene0.010%
Carbon Tetrachloride0.003%
Lead0.010%
Mercury0.005%

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, StatePopulationAir Quality IndexNational Avg.
Brenton, WV252295490%
Covel, WV120295490%
Gary, WV703295490%
Matoaka, WV172295490%
New Richmond, WV270295490%
Keystone, WV129295490%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pine River, WI1293824%
Campus, IL129198%
Jacksonport, AR1294412%
Woodcock, PA129484%
Pony, MT1292452%
Keystone, WV129295490%
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.
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