TODAY NOV21
TEMPERATURE25
HUMIDITY95
PRESSURE
WIND COND.
  • 493670%80%
  • 4531Fri60%70%
  • 4332Sat20%
  • 4330Sun
  • 4434Mon
daynightWeather update from TROY at

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Troy 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
January24°F34°F28°F10.5"
February27°F40°F32°F1.8"
March31°F49°F39°F2.0"
April37°F59°F47°F1.0"
May45°F70°F56°F1.9"
June51°F76°F62°F2.4"
July58°F87°F71°F0.8"
August56°F85°F69°F1.1"
September48°F73°F58°F1.5"
October39°F57°F46°F2.2"
November31°F43°F35°F2.3"
December22°F32°F26°F8.7"

Did you know?

  • The highest monthly average temperature in Troy for July is 71 degrees.
  • The lowest monthly average temperature in Troy for December is 26 degrees.
  • The most monthly precipitation in Troy occurs in January with 10.5 inches.
  • The air quality index in Troy is 23% better than the national average.
  • The pollution index in Troy is 80% better than the national average.

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Compare Troy, MT Weather To Other Cities

Troy 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.
IndexTroyMontanaNational
Air quality index383450
Pollution index968,253685,9255,066,862

Troy air quality information

MeasurementTotal
Days measured365
Days with good air quality288
Days with moderate air quality73
Days w/ poor A.Q. for sensitive groups4
Days with unhealthy air quality

Troy air quality information

PollutantTotal
Arsenic0.001%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.010%
Mercury0.000%

Average monthly Troy temperature with heat index

Troy monthly precipitation with daily maximum

Troy monthly snow depth with daily maximum

Troy monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Troy, MT6993824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Bulls Gap, TN6993922%
Worthington, PA6993628%
Mount Aetna, MD6994118%
Benns Church, VA6993922%
Fort Duchesne, UT699484%
Troy, MT6993824%
Source: The Troy, 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.