St. Marys, ON Weather - Forecast & Monthly Averages

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in St. Marys for n/a is n/a degrees
The lowest monthly average temperature in St. Marys for n/a is n/a degrees
The most monthly precipitation in St. Marys occurs in n/a with n/a inches
The air quality index in St. Marys is 100% better than the national average
The pollution index in St. Marys is 100% better than the national average

Compare St. Marys, ON Weather

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St. Marys 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	n/a°F	n/a°F	n/a°F	n/a
February	n/a°F	n/a°F	n/a°F	n/a
March	n/a°F	n/a°F	n/a°F	n/a
April	n/a°F	n/a°F	n/a°F	n/a
May	n/a°F	n/a°F	n/a°F	n/a
June	n/a°F	n/a°F	n/a°F	n/a
July	n/a°F	n/a°F	n/a°F	n/a
August	n/a°F	n/a°F	n/a°F	n/a
September	n/a°F	n/a°F	n/a°F	n/a
October	n/a°F	n/a°F	n/a°F	n/a
November	n/a°F	n/a°F	n/a°F	n/a
December	n/a°F	n/a°F	n/a°F	n/a

St. Marys 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. Marys	Ontario	National
Air quality index	n/a	n/a	42
Pollution index	n/a	n/a	2,726,193

St. Marys air quality

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

Air quality details

Pollutant	Total
Arsenic	n/a%
Benzene	n/a%
Carbon Tetrachloride	n/a%
Lead	n/a%
Mercury	n/a%

Average monthly St. Marys temperature with heat index

St. Marys monthly precipitation with daily maximum

St. Marys monthly snow depth with daily maximum

St. Marys monthly wind speed information

Cities with similar population

City	Population	Air Quality Index	National Avg.
Oroville East, CA	8,093	46	8.0%
Northfield, NJ	8,088	37	26.0%
Bellevue, PA	8,088	56	12.0%
Topanga, CA	8,098	72	44.0%
Garden City Park, NY	8,087	51	2.0%
St. Marys, ON	8,093	n/a

Source: The St. Marys, ON 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.