TODAY JUL16
TEMPERATURE74
HUMIDITY54
PRESSURE
WIND COND.48
  • 8862Mon
  • 8865Tue30%
  • 8864Wed20%
  • 8961Thu
  • 8864Fri
daynightWeather update from BUFFALO RAPIDS/TERRY at

Fallon Average Weather

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
January-33°F55°F19°F0.1"
February-20°F61°F22°F0.0"
March-18°F79°F33°F0.3"
April10°F82°F45°F0.2"
May18°F90°F54°F1.6"
June34°F99°F65°F1.0"
July43°F108°F75°F0.3"
August41°F102°F70°F1.1"
September25°F100°F60°F0.4"
October7°F91°F43°F1.2"
November-6°F73°F34°F0.2"
December-33°F57°F16°F0.1"

Did you know?

  • The highest monthly average temperature in Fallon for July is 75 degrees.
  • The lowest monthly average temperature in Fallon for December is 16 degrees.
  • The most monthly precipitation in Fallon occurs in May with 1.6 inches.
  • The air quality index in Fallon is 31% better than the national average.
  • The pollution index in Fallon is 96% better than the national average.

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Compare Fallon, MT Weather To Other Cities

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 index343450
Pollution index155,479685,9255,066,862

Fallon air quality information

MeasurementTotal
Days measured365
Days with good air quality363
Days with moderate air quality2
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Fallon air quality information

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

City, StatePopulationAir Quality IndexNational Avg.
Terry, MT8523432%
Fallon, MT1553432%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Shevlin, MN1553530%
Westdale, TX1553138%
Bragg City, MO1553628%
Adin, CA1553824%
Crystal Bay, NV1554412%
Fallon, MT1553432%
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.