Currently: 64 °F. Clear. (Weather station: Toronto Island Airport, Canada). See more current weatherAnnual Weather Averages in Markham
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Markham
High Temp: 81 °F
Low Temp: 15 °F
Mean Temp: 47 °F
Precipitation: 2.73"
Humidity: 72%
Dew Point: 38 °F
Wind: 15 mph
Pressure: 30.01 "Hg
Visibility: 12 mi
January Climate & Weather Averages in Markham
High Temp: 30 °F
Low Temp: 15 °F
Mean Temp: 22 °F
Precipitation: 2.47"
Humidity: 75%
Dew Point: 16 °F
Wind: 16 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Markham
High Temp: 31 °F
Low Temp: 15 °F
Mean Temp: 23 °F
Precipitation: 2.10"
Humidity: 72%
Dew Point: 16 °F
Wind: 17 mph
Pressure: 30.04 "Hg
Visibility: 11 mi
March Climate & Weather Averages in Markham
High Temp: 40 °F
Low Temp: 23 °F
Mean Temp: 32 °F
Precipitation: 2.06"
Humidity: 68%
Dew Point: 22 °F
Wind: 17 mph
Pressure: 30.05 "Hg
Visibility: 11 mi
April Climate & Weather Averages in Markham
High Temp: 53 °F
Low Temp: 34 °F
Mean Temp: 43 °F
Precipitation: 3.15"
Humidity: 64%
Dew Point: 31 °F
Wind: 17 mph
Pressure: 29.98 "Hg
Visibility: 12 mi
May Climate & Weather Averages in Markham
High Temp: 66 °F
Low Temp: 45 °F
Mean Temp: 56 °F
Precipitation: 2.87"
Humidity: 65%
Dew Point: 43 °F
Wind: 14 mph
Pressure: 29.98 "Hg
Visibility: 12 mi
June Climate & Weather Averages in Markham
High Temp: 76 °F
Low Temp: 56 °F
Mean Temp: 66 °F
Precipitation: 3.28"
Humidity: 68%
Dew Point: 54 °F
Wind: 13 mph
Pressure: 29.94 "Hg
Visibility: 12 mi
July Climate & Weather Averages in Markham
High Temp: 81 °F
Low Temp: 61 °F
Mean Temp: 71 °F
Precipitation: 3.19"
Humidity: 69%
Dew Point: 59 °F
Wind: 13 mph
Pressure: 29.95 "Hg
Visibility: 12 mi
August Climate & Weather Averages in Markham
High Temp: 79 °F
Low Temp: 59 °F
Mean Temp: 69 °F
Precipitation: 2.71"
Humidity: 72%
Dew Point: 59 °F
Wind: 12 mph
Pressure: 30.00 "Hg
Visibility: 12 mi
September Climate & Weather Averages in Markham
High Temp: 72 °F
Low Temp: 52 °F
Mean Temp: 62 °F
Precipitation: 3.04"
Humidity: 74%
Dew Point: 53 °F
Wind: 12 mph
Pressure: 30.04 "Hg
Visibility: 12 mi
October Climate & Weather Averages in Markham
High Temp: 58 °F
Low Temp: 41 °F
Mean Temp: 49 °F
Precipitation: 2.75"
Humidity: 77%
Dew Point: 42 °F
Wind: 14 mph
Pressure: 30.03 "Hg
Visibility: 12 mi
November Climate & Weather Averages in Markham
High Temp: 45 °F
Low Temp: 31 °F
Mean Temp: 38 °F
Precipitation: 2.81"
Humidity: 77%
Dew Point: 32 °F
Wind: 15 mph
Pressure: 30.05 "Hg
Visibility: 11 mi
December Climate & Weather Averages in Markham
High Temp: 35 °F
Low Temp: 23 °F
Mean Temp: 29 °F
Precipitation: 2.39"
Humidity: 78%
Dew Point: 23 °F
Wind: 16 mph
Pressure: 30.04 "Hg
Visibility: 10 mi