Currently: 59 °F. Light rain. Overcast. (Weather station: Saint Catharines Airport, Canada). See more current weatherAnnual Weather Averages Near St. Catharines
Averages are for Saint Catharines Airport, which is 5 miles from St. Catharines.
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in St. Catharines
High Temp: 81 °F
Low Temp: 20 °F
Mean Temp: 49 °F
Precipitation: 1.29"
Humidity: 71%
Dew Point: 41 °F
Wind: 9 mph
Pressure: 30.01 "Hg
Visibility: 12 mi
January Climate & Weather Averages in St. Catharines
High Temp: 32 °F
Low Temp: 20 °F
Mean Temp: 26 °F
Precipitation: 1.40"
Humidity: 76%
Dew Point: 20 °F
Wind: 11 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
February Climate & Weather Averages in St. Catharines
High Temp: 33 °F
Low Temp: 20 °F
Mean Temp: 26 °F
Precipitation: 0.88"
Humidity: 74%
Dew Point: 20 °F
Wind: 11 mph
Pressure: 30.06 "Hg
Visibility: 11 mi
March Climate & Weather Averages in St. Catharines
High Temp: 42 °F
Low Temp: 27 °F
Mean Temp: 35 °F
Precipitation: 0.97"
Humidity: 70%
Dew Point: 26 °F
Wind: 10 mph
Pressure: 30.05 "Hg
Visibility: 12 mi
April Climate & Weather Averages in St. Catharines
High Temp: 54 °F
Low Temp: 37 °F
Mean Temp: 46 °F
Precipitation: 1.61"
Humidity: 67%
Dew Point: 35 °F
Wind: 10 mph
Pressure: 29.97 "Hg
Visibility: 13 mi
May Climate & Weather Averages in St. Catharines
High Temp: 67 °F
Low Temp: 48 °F
Mean Temp: 57 °F
Precipitation: 1.40"
Humidity: 65%
Dew Point: 47 °F
Wind: 9 mph
Pressure: 29.98 "Hg
Visibility: 13 mi
June Climate & Weather Averages in St. Catharines
High Temp: 77 °F
Low Temp: 59 °F
Mean Temp: 68 °F
Precipitation: 1.43"
Humidity: 67%
Dew Point: 57 °F
Wind: 8 mph
Pressure: 29.94 "Hg
Visibility: 12 mi
July Climate & Weather Averages in St. Catharines
High Temp: 81 °F
Low Temp: 64 °F
Mean Temp: 72 °F
Precipitation: 1.46"
Humidity: 67%
Dew Point: 62 °F
Wind: 8 mph
Pressure: 29.95 "Hg
Visibility: 12 mi
August Climate & Weather Averages in St. Catharines
High Temp: 79 °F
Low Temp: 62 °F
Mean Temp: 71 °F
Precipitation: 0.92"
Humidity: 69%
Dew Point: 61 °F
Wind: 8 mph
Pressure: 30.00 "Hg
Visibility: 13 mi
September Climate & Weather Averages in St. Catharines
High Temp: 72 °F
Low Temp: 55 °F
Mean Temp: 63 °F
Precipitation: 1.36"
Humidity: 72%
Dew Point: 55 °F
Wind: 8 mph
Pressure: 30.03 "Hg
Visibility: 13 mi
October Climate & Weather Averages in St. Catharines
High Temp: 59 °F
Low Temp: 44 °F
Mean Temp: 52 °F
Precipitation: 1.38"
Humidity: 73%
Dew Point: 44 °F
Wind: 9 mph
Pressure: 30.03 "Hg
Visibility: 13 mi
November Climate & Weather Averages in St. Catharines
High Temp: 48 °F
Low Temp: 35 °F
Mean Temp: 41 °F
Precipitation: 1.31"
Humidity: 74%
Dew Point: 34 °F
Wind: 10 mph
Pressure: 30.05 "Hg
Visibility: 13 mi
December Climate & Weather Averages in St. Catharines
High Temp: 37 °F
Low Temp: 27 °F
Mean Temp: 32 °F
Precipitation: 1.37"
Humidity: 77%
Dew Point: 26 °F
Wind: 10 mph
Pressure: 30.06 "Hg
Visibility: 12 mi