Climate & Temperature > Canada > Ottawa, Ontario

Ottawa, Ontario Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Ottawa, Ontario, Canada latitude & longitude; 45°24'N 75°43'W.
  • Altitude; 79 m (259 ft).
  • The average temperature in Ottawa, Ontario, Canada is 5.7 °C (42 °F).
  • The range of average monthly temperatures is 32 °C.
  • The warmest average max/ high temperature is 27 °C (81 °F) in July.
  • The coolest average min/ low temperature is -16 °C (3 °F) in January.
  • Ottawa, Ontario receives on average 865 mm (34.1 in) of precipitation annually or 72 mm (2.8 in) each month.
  • On balance there are 141 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 12 days on an average month.
  • The month with the driest weather is February when on balance 58 mm (2.3 in) of rain, sleet, hail or snow falls across 13 days.
  • The month with the wettest weather is August when on balance 83 mm (3.3 in) of rain, sleet, hail or snow falls across 10 days.
  • Mean relative humidity for an average year is recorded as 62.8% and on a monthly basis it ranges from 53% in May, July to 75% in January & December.
  • There is an average range of hours of sunshine in Ottawa, Ontario of between 2.5 hours per day in December and 9.1 hours per day in July.
  • On balance there are 1989 sunshine hours annually and approximately 5.4 sunlight hours for each day.

Ottawa, Ontario Climate Graph (Metric | Imperial units)

Ottawa, Ontario Climate Graph

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Ottawa, Ontario Weather Averages

  Average Minimum Temperatures in Ottawa, Ontario, Canada (°C) Average Maximum Temperature in Ottawa, Ontario, Canada (°C) Ottawa, Ontario Average Temperature (°C) Average Sea Temp (°C) Average Rainfall/ Precipitation (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in Ottawa, Ontario (Beaufort) Average Number of Days with Frost  
Weather in Ottawa, Ontario in January -16 -7 -11.5 - 62 13 3.0 75 3 - Average Temperature in Ottawa, Ontario in January
Weather in Ottawa, Ontario in February -15 -5 -10 - 58 13 3.9 74 3 - Average Temperature in Ottawa, Ontario in February
Weather in Ottawa, Ontario in March -8 1 -4 - 67 12 4.5 67.0 3 - Average Temperature in Ottawa, Ontario in March
Weather in Ottawa, Ontario in April 0 11 6 - 69 11 5.6 56 3 - Average Temperature in Ottawa, Ontario in April
Weather in Ottawa, Ontario in May 7 19 13 - 70 11 7.4 53 3 - Average Temperature in Ottawa, Ontario in May
Weather in Ottawa, Ontario in June 12 24 18 - 78 11 8.3 56 3 - Average Temperature in Ottawa, Ontario in June
Weather in Ottawa, Ontario in July 14 27 21 - 82 11 9.1 53 3 - Average Temperature in Ottawa, Ontario in July
Weather in Ottawa, Ontario in August 14 26 20 - 83 10 8.2 54 3 - Average Temperature in Ottawa, Ontario in August
Weather in Ottawa, Ontario in September 9 20 15 - 82 11 5.8 59 3 - Average Temperature in Ottawa, Ontario in September
Weather in Ottawa, Ontario in October 3 14 9 - 67 11 4.4 62 3 - Average Temperature in Ottawa, Ontario in October
Weather in Ottawa, Ontario in November -2 5 2 - 69 13 2.6 70 3 - Average Temperature in Ottawa, Ontario in November
Weather in Ottawa, Ontario in December -12 -4 -8 - 78 14 2.5 75 3 - Average Temperature in Ottawa, Ontario in December

Ottawa, Ontario Climograph/ Climate Chart (imperial)

Ottawa, Ontario Temperature Chart

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Ottawa, Ontario Temperatures in Farenheit

  Average Minimum Temperatures in Ottawa, Ontario, Canada (°F) Average Maximum Temperature in Ottawa, Ontario, Canada (°F) Average Temperature (°F) Average Sea Temp (°F) Average Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in Ottawa, Ontario in January 3 19 11 - 2.4 13 3.0 75 3 - Climate in Ottawa, Ontario in January
Temperatures in Ottawa, Ontario in February 5 23 14 - 2.3 13 3.9 74 3 - Climate in Ottawa, Ontario in February
Temperatures in Ottawa, Ontario in March 18 34 26 - 2.6 12 4.5 67 3 - Climate in Ottawa, Ontario in March
Temperatures in Ottawa, Ontario in April 32 52 42 - 2.7 11 5.6 56 3 - Climate in Ottawa, Ontario in April
Temperatures in Ottawa, Ontario in May 45 66 55 - 2.8 11 7.4 53 3 - Climate in Ottawa, Ontario in May
Temperatures in Ottawa, Ontario in June 54 75 64 - 3.1 11 8.3 56 3 - Climate in Ottawa, Ontario in June
Temperatures in Ottawa, Ontario in July 57 81 69 - 3.2 11 9.1 53 3 - Climate in Ottawa, Ontario in July
Temperatures in Ottawa, Ontario in August 57 79 68 - 3.3 10 8.2 54 3 - Climate in Ottawa, Ontario in August
Temperatures in Ottawa, Ontario in September 48 68 58 - 3.2 11 5.8 59 3 - Climate in Ottawa, Ontario in September
Temperatures in Ottawa, Ontario in October 37 57 47 - 2.6 11 4.4 62 3 - Climate in Ottawa, Ontario in October
Temperatures in Ottawa, Ontario in November 28 41 35 - 2.7 13 2.6 70 3 - Climate in Ottawa, Ontario in November
Temperatures in Ottawa, Ontario in December 10 25 18 - 3.1 14 2.5 75 3 - Climate in Ottawa, Ontario in December

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Climate & Temperature > Canada > Ottawa, Ontario

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