TODAY NOV22
TEMPERATURE41
HUMIDITY82
PRESSURE101520
WIND COND.340 20.5
  • 3829Sat
  • 4230Sun70%
  • 3926Mon70%
  • 3524Tue
  • 3423Wed
daynightWeather update from Houghton County Memorial Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ontonagon for July is 65.8 degrees
  • The lowest monthly average temperature in Ontonagon for February is 17.2 degrees
  • The most monthly precipitation in Ontonagon occurs in September with 3.9 inches
  • The air quality index in Ontonagon is 81% better than the national average
  • The pollution index in Ontonagon is 57% worse than the national average

Compare Ontonagon, MI Weather

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      Ontonagon 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
      January11°F24°F17°F0.9"
      February9°F25°F17°F0.9"
      March18°F36°F27°F1.0"
      April29°F48°F38°F1.6"
      May40°F62°F50°F3.0"
      June49°F72°F60°F3.7"
      July55°F77°F66°F3.1"
      August55°F76°F65°F2.9"
      September48°F68°F57°F3.9"
      October38°F54°F46°F3.8"
      November27°F41°F34°F2.0"
      December16°F28°F22°F1.3"

      Ontonagon 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.
      IndexOntonagonMichiganNational
      Air quality index86942
      Pollution index4,281,3504,161,6062,726,193

      Ontonagon air quality

      MeasurementTotal
      Days measured59
      Days with good air quality59
      Days with moderate air quality0
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.000%

      Average monthly Ontonagon temperature with heat index

      Ontonagon monthly precipitation with daily maximum

      Ontonagon monthly snow depth with daily maximum

      Ontonagon monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      White Pine, MI446884.0%
      Ontonagon, MI1,474884.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lebec, CA1,4746734.0%
      Alloway, NJ1,4744020.0%
      Poultney, VT1,4743628.0%
      Armour, ON1,474n/a 
      Osler, SK1,474n/a 
      Ontonagon, MI1,474884.0%
      Source: The Ontonagon, MI 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.