TODAY JUN20
TEMPERATURE44
HUMIDITY96
PRESSURE
WIND COND.174 1
  • 775320%
  • 7556Thu40%70%
  • 7752Fri30%
  • 7251Sat20%
  • 7954Sun
daynightWeather update from NINE MILE at

Old Agency 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-9°F50°F26°F0.6"
February-9°F61°F31°F0.6"
March4°F71°F37°F0.8"
April19°F80°F44°F1.3"
May26°F90°F54°F1.5"
June33°F98°F61°F1.9"
July39°F107°F72°F0.3"
August38°F100°F67°F1.0"
September28°F94°F58°F1.2"
October9°F81°F44°F0.8"
November2°F65°F34°F1.2"
December-16°F50°F23°F0.8"

Did you know?

  • The highest monthly average temperature in Old Agency for July is 72 degrees.
  • The lowest monthly average temperature in Old Agency for December is 23 degrees.
  • The most monthly precipitation in Old Agency occurs in June with 1.9 inches.
  • The air quality index in Old Agency is 10% worse than the national average.
  • The pollution index in Old Agency is 83% better than the national average.

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Compare Old Agency, MT Weather To Other Cities

Old Agency 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.
IndexOld AgencyMontanaNational
Air quality index553450
Pollution index848,303685,9255,066,862

Old Agency air quality information

MeasurementTotal
Days measured365
Days with good air quality160
Days with moderate air quality181
Days w/ poor A.Q. for sensitive groups18
Days with unhealthy air quality6

Old Agency air quality information

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

Average monthly Old Agency temperature with heat index

Old Agency monthly precipitation with daily maximum

Old Agency monthly snow depth with daily maximum

Old Agency monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Kicking Horse, MT555510%
Arlee, MT6225510%
Ravalli, MT405510%
Charlo, MT4505510%
Ronan, MT1,9195510%
Old Agency, MT1155510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Dutch John, UT115484%
Billingsley, AL1153726%
Normanna, TX1152746%
South Greenfield, MO1153922%
Kimball, WV115295490%
Old Agency, MT1155510%
Source: The Old Agency, 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.