TODAY DEC22
TEMPERATURE40
HUMIDITY69
PRESSURE
WIND COND.340 1.6
  • 4117Mon
  • 3924Tue
  • 4117
  • 4023Thu
  • 4122Fri
daynightWeather update from HARLEM at
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Weather Quick Facts

  • The highest monthly average temperature in Harlem for July is 71.7 degrees
  • The lowest monthly average temperature in Harlem for December is 18.4 degrees
  • The most monthly precipitation in Harlem occurs in June with 2.4 inches
  • The air quality index in Harlem is 50% better than the national average
  • The pollution index in Harlem is 91% better than the national average

Compare Harlem, MT Weather

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      Harlem 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
      January8°F32°F19°F0.6"
      February10°F36°F22°F0.4"
      March20°F49°F33°F0.8"
      April29°F61°F44°F1.3"
      May38°F70°F54°F2.0"
      June46°F79°F63°F2.4"
      July53°F90°F72°F1.4"
      August50°F88°F68°F1.0"
      September41°F77°F58°F1.2"
      October31°F62°F44°F1.0"
      November20°F46°F32°F0.6"
      December7°F31°F18°F0.7"

      Harlem 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.
      IndexHarlemMontanaNational
      Air quality index213442
      Pollution index232,374834,4732,726,193

      Harlem air quality

      MeasurementTotal
      Days measured363
      Days with good air quality350
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Harlem temperature with heat index

      Harlem monthly precipitation with daily maximum

      Harlem monthly snow depth with daily maximum

      Harlem monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fort Belknap Agency, MT1,5202158.0%
      Harlem, MT8662158.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Odebolt, IA8663530.0%
      Francesville, IN8664216.0%
      Memphis, IN866492.0%
      Pennville, IN8663530.0%
      Frenchburg, KY8663334.0%
      Harlem, MT8662158.0%
      Source: The Harlem, MT 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.