TODAY NOV23
TEMPERATURE29
HUMIDITY78
PRESSURE
WIND COND.107
  • 253Sun20%
  • 247Mon
  • 3812Tue
  • 305Wed
  • 243
daynightWeather update from BUFFALO RAPIDS/TERRY at
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Weather Quick Facts

  • The highest monthly average temperature in Fallon for July is 73.4 degrees
  • The lowest monthly average temperature in Fallon for December is 17.8 degrees
  • The most monthly precipitation in Fallon occurs in May with 7 inches
  • The air quality index in Fallon is 22% better than the national average
  • The pollution index in Fallon is 94% better than the national average

Compare Fallon, MT Weather

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      Fallon 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"

      Fallon 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.
      IndexFallonMontanaNational
      Air quality index333442
      Pollution index155,479834,4732,726,193

      Fallon air quality

      MeasurementTotal
      Days measured365
      Days with good air quality354
      Days with moderate air quality11
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.001%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Fallon temperature with heat index

      Fallon monthly precipitation with daily maximum

      Fallon monthly snow depth with daily maximum

      Fallon monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Terry, MT5493334.0%
      Fallon, MT2153334.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Burdette, AR2152648.0%
      Bombay Beach, CA2155816.0%
      Fort Washington, CA2156020.0%
      Rickardsville, IA2152942.0%
      Rockbridge, IL215548.0%
      Fallon, MT2153334.0%
      Source: The Fallon, 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.