TODAY AUG14
TEMPERATURE74
HUMIDITY76
PRESSURE29.99
WIND COND.
  • 8669Wed30%
  • 8066Thu60%70%
  • 8163Fri30%
  • 8262Sat
  • 8364Sun
daynightWeather update from Detroit, Willow Run Airport at

South Lyon 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°F34°F26°F2.0"
February18°F36°F26°F1.7"
March28°F48°F37°F2.5"
April38°F63°F50°F3.2"
May48°F74°F61°F4.0"
June58°F83°F71°F3.6"
July62°F87°F74°F3.6"
August61°F85°F73°F3.4"
September54°F78°F65°F3.0"
October43°F65°F53°F2.5"
November32°F52°F42°F2.6"
December24°F39°F31°F2.1"

Did you know?

  • The highest monthly average temperature in South Lyon for July is 74 degrees.
  • The lowest monthly average temperature in South Lyon for January is 26 degrees.
  • The most monthly precipitation in South Lyon occurs in May with 4 inches.
  • The air quality index in South Lyon is 31% better than the national average.
  • The pollution index in South Lyon is 96% better than the national average.

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Compare South Lyon, MI Weather To Other Cities

South Lyon 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.
IndexSouth LyonMichiganNational
Air quality index346950
Pollution index180,6674,018,8005,066,862

South Lyon air quality information

MeasurementTotal
Days measured365
Days with good air quality322
Days with moderate air quality43
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

South Lyon air quality information

PollutantTotal
Arsenic0.000%
Benzene0.002%
Carbon Tetrachloride0.001%
Lead0.000%
Mercury0.000%

Average monthly South Lyon temperature with heat index

South Lyon monthly precipitation with daily maximum

South Lyon monthly snow depth with daily maximum

South Lyon monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Dexter, MI4,3193432%
Milford, MI6,4343432%
Pinckney, MI2,5903432%
Ann Arbor, MI118,0873432%
Northville, MI5,9863432%
South Lyon, MI11,6723432%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Ocean Pines, MD11,6763628%
Oak Hills, OR11,6783824%
Red Oak, TX11,663548%
Los Alamitos, CA11,6617448%
El Campo, TX11,6852746%
South Lyon, MI11,6723432%
Source: The South Lyon, 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.