TODAY NOV21
TEMPERATURE29
HUMIDITY63
PRESSURE
WIND COND.240 7.6
  • 4630Fri20%40%
  • 4419Sat80%40%
  • 3211Sun
  • 2911Mon
  • 3312Tue
daynightWeather update from Dillon, Dillon Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Dillon for July is 67.1 degrees
  • The lowest monthly average temperature in Dillon for December is 20.1 degrees
  • The most monthly precipitation in Dillon occurs in June with 2.2 inches
  • The air quality index in Dillon is 52% better than the national average
  • The pollution index in Dillon is 89% better than the national average

Compare Dillon, MT Weather

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      Dillon 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
      January14°F34°F23°F0.1"
      February18°F40°F27°F0.3"
      March23°F47°F33°F0.7"
      April29°F55°F40°F1.6"
      May37°F65°F50°F1.9"
      June43°F72°F57°F2.2"
      July50°F85°F67°F1.3"
      August47°F83°F64°F0.9"
      September40°F73°F55°F1.2"
      October32°F57°F42°F1.3"
      November23°F45°F33°F0.5"
      December11°F31°F20°F0.2"

      Dillon 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.
      IndexDillonMontanaNational
      Air quality index203442
      Pollution index293,782834,4732,726,193

      Dillon air quality

      MeasurementTotal
      Days measured363
      Days with good air quality319
      Days with moderate air quality44
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Dillon temperature with heat index

      Dillon monthly precipitation with daily maximum

      Dillon monthly snow depth with daily maximum

      Dillon monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Dillon, MT4,3332060.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Woodruff, SC4,3334412.0%
      Reidland, KY4,3344412.0%
      Harrogate, TN4,3343922.0%
      Del Mar, CA4,3316428.0%
      Cumberland, BC4,331n/a 
      Dillon, MT4,3332060.0%
      Source: The Dillon, 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.