TODAY DEC29
TEMPERATURE33
HUMIDITY63
PRESSURE
WIND COND.187 19.3
  • 4425Sun70%90%
  • 3416Mon30%20%
  • 3012Tue
  • 3118
  • 3722Thu
daynightWeather update from ENNIS at
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Weather Quick Facts

  • The highest monthly average temperature in Ennis for July is 67.1 degrees
  • The lowest monthly average temperature in Ennis for December is 20.1 degrees
  • The most monthly precipitation in Ennis occurs in June with 2.2 inches
  • The air quality index in Ennis is 41% better than the national average
  • The pollution index in Ennis is 89% better than the national average

Compare Ennis, MT Weather

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      Ennis 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"

      Ennis 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.
      IndexEnnisMontanaNational
      Air quality index253442
      Pollution index293,782834,4732,726,193

      Ennis air quality

      MeasurementTotal
      Days measured365
      Days with good air quality337
      Days with moderate air quality28
      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 Ennis temperature with heat index

      Ennis monthly precipitation with daily maximum

      Ennis monthly snow depth with daily maximum

      Ennis monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Virginia City, MT1692550.0%
      Ennis, MT7212550.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Wallace, CA7214510.0%
      Quasqueton, IA7213922.0%
      Dakota, IL7214216.0%
      Saybrook, IL7214412.0%
      St. Bernice, IN7214510.0%
      Ennis, MT7212550.0%
      Source: The Ennis, 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.