St. Catharines, ON Weather - Forecast & Monthly Averages

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

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

Compare St. Catharines, ON Weather

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

St. Catharines 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. Catharines temperature with heat index

St. Catharines monthly precipitation with daily maximum

St. Catharines monthly snow depth with daily maximum

St. Catharines monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Niagara Falls, NY	47,978	39	22.0%
Youngstown, NY	1,687	39	22.0%
Grandyle Village, NY	5,099	39	22.0%
Lewiston, NY	2,582	39	22.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Fullerton, CA	141,061	72	44.0%
Midland, TX	141,194	28	44.0%
Miramar, FL	140,479	41	18.0%
Dayton, OH	140,444	47	6.0%
Cambridge, ON	140,221	n/a
St. Catharines, ON	140,913	n/a

Source: The St. Catharines, 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.