Historical Weather in Ottawa, Canada
See 55+ years of weather history for any date in Ottawa going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Ottawa, Canada, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 80°F / Low: 60°F
Coldest MonthJanuaryAvg High: 23°F / Low: 7°F
Jan
23°/ 7°
💧 3.8"
❄️ 1.3"
Feb
26°/ 9°
💧 4.2"
❄️ 1.6"
Mar
37°/ 20°
💧 5.2"
❄️ 1.6"
Apr
52°/ 34°
💧 6.0"
❄️ 1.1"
May
67°/ 46°
💧 5.9"
❄️ 0.4"
Jun
75°/ 56°
💧 7.3"
Jul
80°/ 60°
💧 7.8"
Aug
78°/ 58°
💧 8.0"
Sep
70°/ 50°
💧 6.8"
Oct
56°/ 40°
💧 6.1"
❄️ 1.2"
Nov
42°/ 29°
💧 5.1"
❄️ 1.4"
Dec
29°/ 15°
💧 4.8"
❄️ 1.5"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.