TODAY OCT21
TEMPERATURE27
HUMIDITY81
PRESSURE30.31
WIND COND.170 5.8
  • 5934Sun
  • 5931Mon
  • 4729Tue
  • 5138Wed
  • 5038Thu20%30%
daynightWeather update from Mankato, Mankato Regional Airport at
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St. Clair 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
January9°F24°F16°F1.2"
February11°F28°F18°F2.3"
March27°F44°F34°F2.2"
April39°F59°F47°F2.9"
May50°F71°F59°F4.0"
June60°F80°F69°F5.5"
July64°F83°F73°F6.8"
August61°F80°F70°F6.7"
September53°F74°F63°F4.4"
October41°F60°F49°F3.0"
November28°F45°F36°F2.0"
December13°F28°F20°F1.4"

Did you know?

  • The highest monthly average temperature in St. Clair for July is 73 degrees.
  • The lowest monthly average temperature in St. Clair for January is 16 degrees.
  • The most monthly precipitation in St. Clair occurs in July with 6.8 inches.
  • The air quality index in St. Clair is 11% better than the national average.
  • The pollution index in St. Clair is 32% better than the national average.

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Compare St. Clair, MN Weather To Other Cities

St. Clair 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. ClairMinnesotaNational
Air quality index443550
Pollution index3,433,9001,833,6285,066,862

St. Clair air quality information

MeasurementTotal
Days measured365
Days with good air quality233
Days with moderate air quality130
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

St. Clair air quality information

PollutantTotal
Arsenic0.001%
Benzene0.030%
Carbon Tetrachloride0.005%
Lead0.030%
Mercury0.001%

Average monthly St. Clair temperature with heat index

St. Clair monthly precipitation with daily maximum

St. Clair monthly snow depth with daily maximum

St. Clair monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Good Thunder, MN5421864%
Amboy, MN6731864%
Mapleton, MN1,6051864%
Waldorf, MN1981864%
Janesville, MN2,6743726%
St. Clair, MN8734412%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Eastover, SC8734216%
Carrolltown, PA8734510%
Millington, MI8733824%
Bay Shore, MI8733628%
Lancaster, MO8734020%
St. Clair, MN8734412%
Source: The St. Clair, MN 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.