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St. Regis 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
January19°F28°F23°F4.8"
February19°F30°F24°F4.6"
March23°F34°F27°F6.5"
April27°F41°F32°F3.4"
May35°F52°F42°F2.7"
June42°F60°F49°F3.5"
July53°F72°F61°F1.0"
August51°F71°F59°F1.0"
September44°F61°F50°F1.6"
October32°F45°F37°F4.2"
November23°F33°F27°F6.4"
December16°F25°F21°F6.1"

Did you know?

  • The highest monthly average temperature in St. Regis for July is 61 degrees.
  • The lowest monthly average temperature in St. Regis for December is 21 degrees.
  • The most monthly precipitation in St. Regis occurs in March with 6.5 inches.
  • The air quality index in St. Regis is 10% worse than the national average.
  • The pollution index in St. Regis is 78% better than the national average.

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Compare St. Regis, MT Weather To Other Cities

St. Regis 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. RegisMontanaNational
Air quality index553450
Pollution index1,107,360685,9255,066,862

St. Regis 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

St. Regis air quality information

PollutantTotal
Arsenic0.001%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.004%
Mercury0.000%

Average monthly St. Regis temperature with heat index

St. Regis monthly precipitation with daily maximum

St. Regis monthly snow depth with daily maximum

St. Regis monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Plains, MT7865510%
Riverbend, MT5295510%
De Borgia, MT195510%
Superior, MT6515510%
Paradise, MT1705510%
St. Regis, MT2075510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Casa, AR2073628%
Forsan, TX2073040%
Joplin, MT2072648%
South Shore, SD2073628%
Captiva, FL2073334%
St. Regis, MT2075510%
Source: The St. Regis, 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.