Weather on a past date in Ottawa

Any date from 1 January 2009 to yesterday.

Mon 19 Oct, 2026 Weather in Ottawa

Sunrise: 07:34 AM
Sunset: 06:37 PM		Moonrise: 03:36 PM
Moonset: 01:00 AM		Max:
19.5 °c		Min:
7.3 °c		Avg:
12.7 °c		Precip:
0.70 mm		Max Wind:
17.6 kph
 
Mon 19
0:00 am
Mon 19
3:00 am
Mon 19
6:00 am
Mon 19
9:00 am
Mon 19
12:00 pm
Mon 19
3:00 pm
Mon 19
6:00 pm
Mon 19
9:00 pm
IconPartly cloudyCloudyPartly cloudyCloudyCloudySunnyPatchy rain possibleOvercast
Temp9.8°c8.7°c7.4°c10.0°c16.5°c19.5°c16.0°c12.6°c
Wind13.3 kmph12.6 kmph11.2 kmph11.9 kmph16.9 kmph14.8 kmph9.4 kmph9.4 kmph
Precip0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.10 mm0.00 mm
Cloud45%69%54%70%76%5%85%97%
Humidity65%66%64%60%46%38%52%53%
Pressure1025 mb1025 mb1026 mb1026 mb1025 mb1024 mb1023 mb1024 mb

Ottawa Annual Weather Averages

MonthHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
January4°C / 39°F-5°C / 24°F-1°C / 31°F198 hours42.12 mm / 1.66 In4 days1021 mb / 31 In
February7°C / 44°F-3°C / 27°F2°C / 35°F172 hours49.37 mm / 1.94 In5 days1020 mb / 31 In
March14°C / 57°F4°C / 39°F8°C / 47°F178 hours98.59 mm / 3.88 In6 days1016 mb / 30 In
April19°C / 65°F8°C / 46°F13°C / 56°F178 hours146.13 mm / 5.75 In8 days1013 mb / 30 In
May23°C / 74°F13°C / 56°F18°C / 65°F183 hours207.94 mm / 8.19 In10 days1013 mb / 30 In
June29°C / 85°F19°C / 67°F24°C / 76°F243 hours148.35 mm / 5.84 In8 days1012 mb / 30 In
July32°C / 89°F21°C / 70°F26°C / 79°F256 hours124.60 mm / 4.91 In8 days1014 mb / 30 In
August31°C / 88°F20°C / 68°F25°C / 78°F256 hours121.78 mm / 4.79 In7 days1014 mb / 30 In
September28°C / 82°F16°C / 62°F22°C / 71°F246 hours98.79 mm / 3.89 In6 days1016 mb / 30 In
October20°C / 68°F10°C / 50°F15°C / 58°F234 hours98.02 mm / 3.86 In5 days1016 mb / 30 In
November13°C / 55°F3°C / 38°F8°C / 46°F223 hours80.41 mm / 3.17 In4 days1019 mb / 31 In
December7°C / 44°F-1°C / 29°F2°C / 36°F209 hours45.10 mm / 1.78 In4 days1020 mb / 31 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

Kansas

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