St. Johns, MI Weather - Forecast & Monthly Averages

TEMPERATURE	33
HUMIDITY	96
PRESSURE	100100
WIND COND.	220 11.2

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Weather Quick Facts

The highest monthly average temperature in St. Johns for July is 72.3 degrees
The lowest monthly average temperature in St. Johns for January is 24.3 degrees
The most monthly precipitation in St. Johns occurs in June with 4.5 inches
The air quality index in St. Johns is 14% better than the national average
The pollution index in St. Johns is 49% better than the national average

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St. Johns Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	16°F	33°F	24°F	2.6"
February	16°F	34°F	25°F	1.7"
March	25°F	47°F	35°F	2.4"
April	35°F	62°F	48°F	3.5"
May	46°F	72°F	59°F	3.9"
June	56°F	81°F	69°F	4.5"
July	60°F	85°F	72°F	3.5"
August	58°F	83°F	70°F	4.4"
September	51°F	76°F	63°F	3.0"
October	41°F	63°F	51°F	3.7"
November	31°F	50°F	40°F	2.6"
December	22°F	37°F	29°F	2.3"

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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.
Index	St. Johns	Michigan	National
Air quality index	36	69	42
Pollution index	1,401,450	4,161,606	2,726,193

St. Johns air quality

Measurement	Total
Days measured	365
Days with good air quality	330
Days with moderate air quality	35
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.020%
Carbon Tetrachloride	0.002%
Lead	0.005%
Mercury	0.000%

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	Population	Air Quality Index	National Avg.
Hubbardston, MI	345	36	28.0%
Ovid, MI	1,559	36	28.0%
DeWitt, MI	4,743	36	28.0%
Westphalia, MI	808	36	28.0%
Ashley, MI	505	36	28.0%
St. Johns, MI	7,920	36	28.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
West Dundee, IL	7,923	55	10.0%
Wytheville, VA	7,925	41	18.0%
Camp Hill, PA	7,926	44	12.0%
Bellevue, OH	7,928	40	20.0%
West Long Branch, NJ	7,911	51	2.0%
St. Johns, MI	7,920	36	28.0%

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.