TODAY AUG18
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7567Sun
  • 7669Mon
  • 7464Tue60%
  • 7062Wed
  • 7364Thu
daynightWeather update from St. Clair County International at

Port Sanilac 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
January18°F32°F25°F3.5"
February16°F32°F24°F2.2"
March26°F43°F33°F2.2"
April36°F57°F45°F2.8"
May46°F69°F57°F3.2"
June56°F77°F66°F3.6"
July61°F81°F71°F4.0"
August60°F80°F69°F3.3"
September53°F74°F63°F3.1"
October43°F62°F52°F2.5"
November33°F49°F41°F2.9"
December24°F37°F30°F3.0"

Did you know?

  • The highest monthly average temperature in Port Sanilac for July is 71 degrees.
  • The lowest monthly average temperature in Port Sanilac for February is 24 degrees.
  • The most monthly precipitation in Port Sanilac occurs in July with 4 inches.
  • The air quality index in Port Sanilac is 23% better than the national average.
  • The pollution index in Port Sanilac is 495% worse than the national average.

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Compare Port Sanilac, MI Weather To Other Cities

Port Sanilac 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.
IndexPort SanilacMichiganNational
Air quality index386950
Pollution index30,180,3004,018,8005,066,862

Port Sanilac air quality information

MeasurementTotal
Days measured238
Days with good air quality203
Days with moderate air quality35
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Port Sanilac air quality information

PollutantTotal
Arsenic0.030%
Benzene0.390%
Carbon Tetrachloride0.080%
Lead0.130%
Mercury0.010%

Average monthly Port Sanilac temperature with heat index

Port Sanilac monthly precipitation with daily maximum

Port Sanilac monthly snow depth with daily maximum

Port Sanilac monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Applegate, MI2623824%
Lexington, MI1,0313824%
Carsonville, MI4613824%
Peck, MI6723824%
Croswell, MI2,6253824%
Port Sanilac, MI5693824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Calypso, NC5694020%
Florien, LA569435770%
Cayuga, NY5693236%
Chilton, TX5693922%
Yankeetown, FL5692452%
Port Sanilac, MI5693824%
Source: The Port Sanilac, MI 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.