TODAY MAR28
TEMPERATURE42
HUMIDITY70
PRESSURE
WIND COND.260 18.4
  • 4726Fri20%
  • 4425Sat20%
  • 4525Sun20%
  • 5632Mon
  • 6337Tue
daynightWeather update from Helena Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Central for July is 72.7 degrees
  • The lowest monthly average temperature in Central for December is 21.8 degrees
  • The most monthly precipitation in Central occurs in June with 2 inches
  • The air quality index in Central is 5% better than the national average
  • The pollution index in Central is 58% better than the national average

Compare Helena, MT Weather

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      Central 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
      January13°F35°F24°F0.6"
      February18°F41°F28°F0.7"
      March25°F52°F38°F0.5"
      April31°F60°F44°F0.9"
      May39°F69°F53°F1.8"
      June47°F79°F63°F2.0"
      July55°F91°F73°F0.7"
      August52°F88°F69°F1.1"
      September44°F77°F59°F1.1"
      October34°F62°F46°F0.8"
      November23°F47°F34°F0.8"
      December12°F33°F22°F0.8"

      Central 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.
      IndexCentralHelenaMontana
      Air quality index404034
      Pollution index1,148,1901,148,190834,473

      Central air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality288
      Days with moderate air quality75
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Central air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.000%

      Average monthly Central temperature with heat index

      Central monthly precipitation with daily maximum

      Central monthly snow depth with daily maximum

      Central monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Montana City, MT2,8214020.0%
      Helena Valley Northwest, MT4,2564020.0%
      Marysville, MT714020.0%
      Spokane Creek, MT4384020.0%
      Helena Valley Southeast, MT8,5464020.0%
      Helena, MT32,6554020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Orangeville, ON32,668n/a 
      Matthews, NC32,682492.0%
      Uniondale, NY32,621512.0%
      St. Charles, IL32,6125510.0%
      Florence, KY32,721548.0%
      Helena, MT32,6554020.0%
      Source: The Central, Helena, 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.