Currently: 18 °F. Partly sunny. (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 1992–2021.
All Year Climate & Weather Averages in St. Catharines
High Temp: 81 °F
Low Temp: 21 °F
Mean Temp: 50 °F
Precipitation: 2.48"
Humidity: 71%
Dew Point: 41 °F
Wind: 18 mph
Pressure: 30.01 "Hg
Visibility: 13 mi
January Climate & Weather Averages in St. Catharines
High Temp: 32 °F
Low Temp: 21 °F
Mean Temp: 27 °F
Precipitation: 2.45"
Humidity: 76%
Dew Point: 20 °F
Wind: 20 mph
Pressure: 30.05 "Hg
Visibility: 11 mi
February Climate & Weather Averages in St. Catharines
High Temp: 33 °F
Low Temp: 21 °F
Mean Temp: 27 °F
Precipitation: 1.68"
Humidity: 73%
Dew Point: 20 °F
Wind: 20 mph
Pressure: 30.05 "Hg
Visibility: 12 mi
March Climate & Weather Averages in St. Catharines
High Temp: 42 °F
Low Temp: 28 °F
Mean Temp: 35 °F
Precipitation: 1.97"
Humidity: 69%
Dew Point: 26 °F
Wind: 19 mph
Pressure: 30.05 "Hg
Visibility: 13 mi
April Climate & Weather Averages in St. Catharines
High Temp: 54 °F
Low Temp: 37 °F
Mean Temp: 46 °F
Precipitation: 2.94"
Humidity: 66%
Dew Point: 35 °F
Wind: 19 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: 58 °F
Precipitation: 2.63"
Humidity: 65%
Dew Point: 47 °F
Wind: 17 mph
Pressure: 29.98 "Hg
Visibility: 13 mi
June Climate & Weather Averages in St. Catharines
High Temp: 77 °F
Low Temp: 60 °F
Mean Temp: 68 °F
Precipitation: 2.97"
Humidity: 66%
Dew Point: 57 °F
Wind: 16 mph
Pressure: 29.94 "Hg
Visibility: 13 mi
July Climate & Weather Averages in St. Catharines
High Temp: 81 °F
Low Temp: 65 °F
Mean Temp: 73 °F
Precipitation: 2.96"
Humidity: 66%
Dew Point: 62 °F
Wind: 15 mph
Pressure: 29.95 "Hg
Visibility: 13 mi
August Climate & Weather Averages in St. Catharines
High Temp: 80 °F
Low Temp: 63 °F
Mean Temp: 71 °F
Precipitation: 2.09"
Humidity: 69%
Dew Point: 62 °F
Wind: 15 mph
Pressure: 29.99 "Hg
Visibility: 13 mi
September Climate & Weather Averages in St. Catharines
High Temp: 73 °F
Low Temp: 56 °F
Mean Temp: 64 °F
Precipitation: 2.75"
Humidity: 71%
Dew Point: 56 °F
Wind: 15 mph
Pressure: 30.03 "Hg
Visibility: 14 mi
October Climate & Weather Averages in St. Catharines
High Temp: 60 °F
Low Temp: 45 °F
Mean Temp: 53 °F
Precipitation: 2.54"
Humidity: 74%
Dew Point: 45 °F
Wind: 17 mph
Pressure: 30.02 "Hg
Visibility: 14 mi
November Climate & Weather Averages in St. Catharines
High Temp: 48 °F
Low Temp: 35 °F
Mean Temp: 42 °F
Precipitation: 2.47"
Humidity: 74%
Dew Point: 34 °F
Wind: 18 mph
Pressure: 30.06 "Hg
Visibility: 13 mi
December Climate & Weather Averages in St. Catharines
High Temp: 38 °F
Low Temp: 27 °F
Mean Temp: 33 °F
Precipitation: 2.28"
Humidity: 77%
Dew Point: 26 °F
Wind: 19 mph
Pressure: 30.05 "Hg
Visibility: 12 mi