TODAY JUN01
TEMPERATURE85
HUMIDITY46
PRESSURE29.9
WIND COND.190 18.3
  • 9168Tue40%
  • 8762Wed50%30%
  • 8765Thu40%
  • 8562Fri40%30%
  • 8361Sat
daynightWeather update from Vinton, Vinton Veterans Memorial Airpark 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
January13°F30°F21°F0.8"
February15°F33°F23°F2.0"
March29°F48°F38°F3.9"
April40°F62°F50°F4.8"
May50°F74°F61°F6.0"
June61°F83°F71°F8.3"
July64°F85°F74°F7.5"
August61°F82°F71°F5.6"
September53°F77°F64°F4.9"
October42°F64°F52°F7.5"
November31°F49°F39°F5.2"
December19°F34°F26°F4.0"

Did you know?

  • The highest monthly average temperature in Keystone for July is 74 degrees.
  • The lowest monthly average temperature in Keystone for January is 21 degrees.
  • The most monthly precipitation in Keystone occurs in June with 8.3 inches.
  • The air quality index in Keystone is 16% better than the national average.
  • The pollution index in Keystone is 92% better than the national average.

Compare Keystone, IA Weather To Other Cities

      vs

      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.
      IndexKeystoneIowaNational
      Air quality index423950
      Pollution index416,1141,643,8365,066,862

      Keystone air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality256
      Days with moderate air quality108
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Keystone air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      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.
      Chelsea, IA2424216%
      Luzerne, IA1384216%
      Watkins, IA1154216%
      Hartwick, IA984216%
      Marengo, IA2,9274216%
      Keystone, IA6314216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Chrisney, IN6314020%
      Queenstown, MD6313726%
      Jarratt, VA6313922%
      June Lake, CA6314314%
      Anmoore, WV6303432%
      Keystone, IA6314216%
      Source: The Keystone, IA 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.