TODAY OCT22
TEMPERATURE41
HUMIDITY57
PRESSURE
WIND COND.
  • 5938Tue
  • 6237Wed
  • 5839Thu
  • 5433Fri
  • 5133Sat
daynightWeather update from ROCKY BOY at
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St. Pierre 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
January8°F32°F19°F0.6"
February10°F36°F22°F0.4"
March20°F49°F33°F0.8"
April29°F61°F44°F1.3"
May38°F70°F54°F2.0"
June46°F79°F63°F2.4"
July53°F90°F72°F1.4"
August50°F88°F68°F1.0"
September41°F77°F58°F1.2"
October31°F62°F44°F1.0"
November20°F46°F32°F0.6"
December7°F31°F18°F0.7"

Did you know?

  • The highest monthly average temperature in St. Pierre for July is 72 degrees.
  • The lowest monthly average temperature in St. Pierre for December is 18 degrees.
  • The most monthly precipitation in St. Pierre occurs in June with 2.4 inches.
  • The air quality index in St. Pierre is 47% better than the national average.
  • The pollution index in St. Pierre is 95% better than the national average.

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Compare St. Pierre, MT Weather To Other Cities

St. Pierre 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.
IndexSt. PierreMontanaNational
Air quality index263450
Pollution index232,374685,9255,066,862

St. Pierre air quality information

MeasurementTotal
Days measured337
Days with good air quality311
Days with moderate air quality26
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

St. Pierre air quality information

PollutantTotal
Arsenic0.000%
Benzene0.004%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly St. Pierre temperature with heat index

St. Pierre monthly precipitation with daily maximum

St. Pierre monthly snow depth with daily maximum

St. Pierre monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Big Sandy, MT6082648%
Rocky Boy's Agency, MT4712648%
Boneau, MT3812648%
Rocky Boy West, MT9572648%
Box Elder, MT782648%
St. Pierre, MT5112648%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Loraine, TX5113040%
Hiltonia, GA5114216%
Jeffersonville, IL5113922%
Elmwood Park, WI5113530%
Mattoon, WI5113628%
St. Pierre, MT5112648%
Source: The St. Pierre, 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.