Ottawa August Weather Averages

Illinois, United States of America

August Weather Averages for Ottawa

High Temp27°C81°F
Low Temp17°C63°F
Avg Temp22°C72°F
Sunshine Hours228 hours 
Rainfall113.14 mm4.45 In
Rain days8 days 
Pressure1015 mb30 In

 

Ottawa August Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200926°C / 78°F16°C / 61°F21°C / 70°F232 hours122.81 mm / 4.84 In13 days1016 mb / 30 In
201029°C / 85°F19°C / 65°F24°C / 75°F292 hours126.03 mm / 4.96 In9 days1014 mb / 30 In
201127°C / 81°F17°C / 63°F22°C / 72°F250 hours57.68 mm / 2.27 In7 days1013 mb / 30 In
201227°C / 80°F16°C / 62°F22°C / 71°F245 hours186.69 mm / 7.35 In6 days1015 mb / 30 In
201327°C / 81°F17°C / 62°F22°C / 71°F259 hours50.95 mm / 2.01 In5 days1017 mb / 30 In
201428°C / 82°F18°C / 64°F23°C / 73°F207 hours56.76 mm / 2.23 In10 days1015 mb / 30 In
201527°C / 81°F16°C / 61°F22°C / 71°F271 hours65.64 mm / 2.58 In6 days1015 mb / 30 In
201628°C / 82°F19°C / 66°F23°C / 74°F213 hours140.06 mm / 5.51 In9 days1016 mb / 30 In
201725°C / 77°F16°C / 60°F20°C / 69°F252 hours71.83 mm / 2.83 In8 days1016 mb / 30 In
201827°C / 81°F19°C / 65°F23°C / 73°F206 hours170.46 mm / 6.71 In11 days1015 mb / 30 In
201926°C / 79°F17°C / 62°F21°C / 70°F238 hours100.66 mm / 3.96 In10 days1015 mb / 30 In
202027°C / 81°F18°C / 64°F22°C / 72°F219 hours19.70 mm / 0.78 In6 days1015 mb / 30 In
202128°C / 83°F19°C / 66°F24°C / 74°F162 hours111.80 mm / 4.40 In11 days1016 mb / 30 In
202230°C / 86°F18°C / 64°F23°C / 74°F218 hours53.64 mm / 2.11 In5 days1015 mb / 30 In
202330°C / 86°F16°C / 62°F23°C / 73°F219 hours101.15 mm / 3.98 In6 days1013 mb / 30 In
202427°C / 81°F17°C / 63°F22°C / 71°F223 hours82.09 mm / 3.23 In5 days1016 mb / 30 In
202528°C / 82°F16°C / 61°F22°C / 71°F171 hours237.20 mm / 9.34 In8 days1018 mb / 31 In
202628°C / 82°F18°C / 65°F23°C / 73°F227 hours281.30 mm / 11.07 In17 days1015 mb / 30 In

Need more than one day of Ottawa history?

Download historical weather for Ottawa, or any other location, in CSV from January 2009 onwards. Ideal for research, insurance, energy, agriculture and machine-learning projects.

  • Historical weatherDaily and hourly interval data.
  • Yearly monthly averagesMonthly averages for every year since 2009.
  • Monthly climate averagesLong-term climate normals by month.
  • CSV formatReady for Excel, Python, R or your database.
Buy historical weather data Or use the History API

Weather history near Ottawa

Region

Illinois

See the Ottawa 14-day forecast »

Hotels near Ottawa

Ottawa weather history: common questions

How far back does Ottawa weather history go?

Hourly historical weather is available from 1 January 2009. Choose a date above, or pick a month at the top of the page for long-term averages.

Can I download Ottawa historical weather as a file?

Yes. Buy historical weather data as daily or hourly CSV, yearly monthly averages or monthly climate averages. A free sample download is available.

Is there an API for historical weather?

Yes. The WeatherAPI.com History API returns hourly weather for any past date from 2010, as JSON or XML. Get a free API key.

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, pollen, evapotranspiration, autocomplete, time zone, astronomy and sports data into your new or existing project.
Get Started