TODAY JUL06
TEMPERATURE77
HUMIDITY84
PRESSURE29.97
WIND COND.130 7.6
  • 9071Mon
  • 9171Tue30%20%
  • 9273Wed
  • 8769Thu70%60%
  • 8968Fri40%30%
daynightWeather update from Marshalltown, Marshalltown Municipal Airport at

Key findings

  • The highest monthly average temperature in Grundy Center for July is 74 degrees
  • The lowest monthly average temperature in Grundy Center for December is 20 degrees
  • The most monthly precipitation in Grundy Center occurs in May with 8 inches
  • The air quality index in Grundy Center is 22% better than the national average
  • The pollution index in Grundy Center is 92% better than the national average

Compare Grundy Center, IA Weather

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      Grundy Center 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
      January12°F28°F20°F1.5"
      February14°F30°F22°F2.6"
      March29°F50°F38°F5.4"
      April38°F62°F50°F7.2"
      May51°F73°F61°F8.0"
      June62°F83°F72°F7.9"
      July63°F85°F74°F5.1"
      August62°F82°F72°F6.6"
      September55°F79°F66°F5.4"
      October44°F65°F54°F5.7"
      November28°F49°F38°F2.2"
      December13°F26°F20°F1.8"

      Grundy Center 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.
      IndexGrundy CenterIowaNational
      Air quality index393950
      Pollution index416,1141,643,8365,066,862

      Grundy Center air quality information

      MeasurementTotal
      Days measured363
      Days with good air quality286
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Grundy Center air quality information

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

      Average monthly Grundy Center temperature with heat index

      Grundy Center monthly precipitation with daily maximum

      Grundy Center monthly snow depth with daily maximum

      Grundy Center monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Union, IA4873726%
      Liscomb, IA2913726%
      Whitten, IA1733726%
      Beaman, IA2383922%
      Holland, IA2843922%
      Grundy Center, IA2,7053922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Fayette, MO2,7053824%
      Daingerfield, TX2,7053726%
      Muse, PA2,7055612%
      Whitehall, MI2,7063824%
      Bella Vista, CA2,7064216%
      Grundy Center, IA2,7053922%
      Source: The Grundy Center, 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.