TODAY DEC22
TEMPERATURE38
HUMIDITY57
PRESSURE
WIND COND.270 6.4
  • 4521Sun30%
  • 4324Mon
  • 4327Tue
  • 4123
  • 4228Thu
daynightWeather update from Lindsay Divide MT-200 MP 296.5 at
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Weather Quick Facts

  • The highest monthly average temperature in Circle for July is 73.4 degrees
  • The lowest monthly average temperature in Circle for December is 17.8 degrees
  • The most monthly precipitation in Circle occurs in May with 7 inches
  • The air quality index in Circle is 19% better than the national average
  • The pollution index in Circle is 93% better than the national average

Compare Circle, MT Weather

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      Circle 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
      January10°F29°F19°F0.5"
      February11°F32°F20°F0.4"
      March23°F48°F33°F1.5"
      April32°F58°F44°F2.8"
      May42°F68°F54°F7.0"
      June52°F79°F65°F3.1"
      July59°F89°F73°F4.0"
      August56°F86°F70°F3.9"
      September46°F76°F60°F3.8"
      October34°F59°F45°F2.8"
      November21°F44°F31°F0.6"
      December9°F29°F18°F0.6"

      Circle 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.
      IndexCircleMontanaNational
      Air quality index343442
      Pollution index192,968834,4732,726,193

      Circle air quality

      MeasurementTotal
      Days measured365
      Days with good air quality309
      Days with moderate air quality53
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Circle temperature with heat index

      Circle monthly precipitation with daily maximum

      Circle monthly snow depth with daily maximum

      Circle monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Circle, MT5113432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Portia, AR5114510.0%
      Rough and Ready, CA5114412.0%
      Juliaetta, ID5111080.0%
      Mackay, ID5112746.0%
      South Range, MI511884.0%
      Circle, MT5113432.0%
      Source: The Circle, 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.