TODAY AUG14
TEMPERATURE67
HUMIDITY87
PRESSURE30.03
WIND COND.
  • 8765Tue
  • 8366Wed20%40%
  • 7864Thu70%70%
  • 8060Fri
  • 8260Sat
daynightWeather update from Lansing, Capital City Airport at

St. Johns 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
January16°F33°F24°F2.6"
February16°F34°F25°F1.7"
March25°F47°F35°F2.4"
April35°F62°F48°F3.5"
May46°F72°F59°F3.9"
June56°F81°F69°F4.5"
July60°F85°F72°F3.5"
August58°F83°F70°F4.4"
September51°F76°F63°F3.0"
October41°F63°F51°F3.7"
November31°F50°F40°F2.6"
December22°F37°F29°F2.3"

Did you know?

  • The highest monthly average temperature in St. Johns for July is 72 degrees.
  • The lowest monthly average temperature in St. Johns for January is 24 degrees.
  • The most monthly precipitation in St. Johns occurs in June with 4.5 inches.
  • The air quality index in St. Johns is 31% better than the national average.
  • The pollution index in St. Johns is 72% better than the national average.

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Compare St. Johns, MI Weather To Other Cities

St. Johns 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. JohnsMichiganNational
Air quality index346950
Pollution index1,401,4504,018,8005,066,862

St. Johns air quality information

MeasurementTotal
Days measured363
Days with good air quality325
Days with moderate air quality38
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

St. Johns air quality information

PollutantTotal
Arsenic0.001%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.005%
Mercury0.000%

Average monthly St. Johns temperature with heat index

St. Johns monthly precipitation with daily maximum

St. Johns monthly snow depth with daily maximum

St. Johns monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Carson City, MI1,1653432%
Fowler, MI1,1613432%
Maple Rapids, MI7263432%
Wacousta, MI1,4253432%
DeWitt, MI4,6573432%
St. Johns, MI7,9513432%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Skidaway Island, GA7,9504020%
Venice Gardens, FL7,9503824%
Beebe, AR7,952476%
Wellington, KS7,9503922%
Maplewood, MO7,9486020%
St. Johns, MI7,9513432%
Source: The St. Johns, 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.