TODAY NOV09
TEMPERATURE45
HUMIDITY93
PRESSURE102200
WIND COND.80 11.2
  • 5044Sat80%20%
  • 5640Sun
  • 5834
  • 5844Tue
  • 5734Wed40%
daynightWeather update from Newton Municipal Airport - Earl Johnson Field at
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Weather Quick Facts

  • The highest monthly average temperature in Monroe for July is 75.5 degrees
  • The lowest monthly average temperature in Monroe for January is 23.7 degrees
  • The most monthly precipitation in Monroe occurs in April with 9.4 inches
  • The air quality index in Monroe is 7% better than the national average
  • The pollution index in Monroe is 45% worse than the national average

Compare Monroe, IA Weather

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      Monroe 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
      January16°F33°F24°F0.5"
      February18°F36°F26°F1.3"
      March31°F52°F40°F7.8"
      April41°F65°F52°F9.4"
      May52°F74°F62°F8.4"
      June62°F84°F72°F5.7"
      July65°F87°F76°F6.6"
      August63°F84°F73°F4.1"
      September55°F79°F66°F7.3"
      October43°F66°F54°F4.3"
      November32°F52°F41°F2.7"
      December20°F37°F28°F3.3"

      Monroe 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.
      IndexMonroeIowaNational
      Air quality index393942
      Pollution index3,955,0601,154,5352,726,193

      Monroe air quality

      MeasurementTotal
      Days measured365
      Days with good air quality306
      Days with moderate air quality59
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.002%
      Mercury0.000%

      Average monthly Monroe temperature with heat index

      Monroe monthly precipitation with daily maximum

      Monroe monthly snow depth with daily maximum

      Monroe monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Colfax, IA1,8863922.0%
      Valeria, IA403922.0%
      Knoxville, IA7,1543922.0%
      Sully, IA9623922.0%
      Sandyville, IA643922.0%
      Monroe, IA1,8103922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Tariffville, CT1,8104118.0%
      Stockton, MO1,8103922.0%
      Sharon, MS1,8103530.0%
      Seabrook Island, SC1,8103824.0%
      Loretto, TN1,8102746.0%
      Monroe, IA1,8103922.0%
      Source: The Monroe, 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.