TODAY NOV22
TEMPERATURE39
HUMIDITY79
PRESSURE101660
WIND COND.310 24.1
  • 4431Fri
  • 4736Sat
  • 5537Sun
  • 4422Mon
  • 3723Tue
daynightWeather update from Moline Quad-City Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Rock Island Arsenal for July is 75.6 degrees
  • The lowest monthly average temperature in Rock Island Arsenal for January is 24 degrees
  • The most monthly precipitation in Rock Island Arsenal occurs in June with 6 inches
  • The air quality index in Rock Island Arsenal is 9% worse than the national average
  • The pollution index in Rock Island Arsenal is 36% better than the national average

Compare Rock Island Arsenal, IL Weather

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      Rock Island Arsenal 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
      January15°F34°F24°F1.5"
      February16°F37°F26°F1.9"
      March29°F53°F40°F2.8"
      April39°F66°F52°F3.9"
      May49°F76°F63°F4.3"
      June60°F85°F73°F6.0"
      July64°F88°F76°F5.3"
      August62°F86°F73°F4.9"
      September54°F81°F66°F3.4"
      October42°F68°F54°F3.2"
      November31°F54°F42°F2.1"
      December19°F37°F28°F2.6"

      Rock Island Arsenal 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.
      IndexRock Island ArsenalIllinoisNational
      Air quality index464142
      Pollution index1,753,5903,148,6942,726,193

      Rock Island Arsenal air quality

      MeasurementTotal
      Days measured365
      Days with good air quality217
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.001%

      Average monthly Rock Island Arsenal temperature with heat index

      Rock Island Arsenal monthly precipitation with daily maximum

      Rock Island Arsenal monthly snow depth with daily maximum

      Rock Island Arsenal monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Princeton, IA9424216.0%
      Cordova, IL6854216.0%
      Davenport, IA102,199468.0%
      Colona, IL5,307468.0%
      Silvis, IL7,507468.0%
      Rock Island Arsenal, IL353468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Humphrey, AR3534510.0%
      Coleville, CA3531374.0%
      Atalissa, IA3533236.0%
      Earl Park, IN3534216.0%
      Macks Creek, MO3533922.0%
      Rock Island Arsenal, IL353468.0%
      Source: The Rock Island Arsenal, IL 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.