Weather on a past date in Thunder Bay

Any date from 1 January 2009 to yesterday.

Thu 22 Oct, 2026 Weather in Thunder Bay

Sunrise: 08:27 AM
Sunset: 06:55 PM		Moonrise: 05:23 PM
Moonset: 04:29 AM		Max:
11.5 °c		Min:
4.3 °c		Avg:
8.1 °c		Precip:
0.00 mm		Max Wind:
10.1 kph
 
Thu 22
0:00 am
Thu 22
3:00 am
Thu 22
6:00 am
Thu 22
9:00 am
Thu 22
12:00 pm
Thu 22
3:00 pm
Thu 22
6:00 pm
Thu 22
9:00 pm
IconClearClearClearSunnyCloudySunnySunnyClear
Temp7.8°c5.7°c5.5°c5.6°c10.8°c11.2°c10.8°c9.1°c
Wind2.5 kmph3.6 kmph2.9 kmph2.2 kmph5.4 kmph6.8 kmph9.4 kmph8.3 kmph
Precip0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm
Cloud0%0%0%12%75%0%5%0%
Humidity92%91%90%88%78%79%80%85%
Pressure1024 mb1025 mb1025 mb1026 mb1026 mb1025 mb1024 mb1024 mb

Thunder Bay Annual Weather Averages

MonthHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
January-9°C / 17°F-16°C / 4°F-12°C / 10°F80 hours32.20 mm / 1.27 In7 days1018 mb / 31 In
February-8°C / 18°F-15°C / 5°F-11°C / 12°F79 hours37.45 mm / 1.47 In7 days1019 mb / 31 In
March-1°C / 30°F-8°C / 18°F-5°C / 24°F96 hours62.07 mm / 2.44 In7 days1018 mb / 31 In
April4°C / 40°F-2°C / 29°F1°C / 34°F121 hours97.01 mm / 3.82 In8 days1016 mb / 30 In
May12°C / 54°F4°C / 40°F8°C / 47°F186 hours84.16 mm / 3.31 In6 days1015 mb / 30 In
June18°C / 64°F9°C / 49°F13°C / 56°F194 hours94.08 mm / 3.70 In7 days1012 mb / 30 In
July22°C / 71°F14°C / 57°F18°C / 64°F225 hours97.66 mm / 3.84 In7 days1013 mb / 30 In
August22°C / 71°F14°C / 57°F17°C / 63°F226 hours97.22 mm / 3.83 In7 days1013 mb / 30 In
September17°C / 63°F10°C / 51°F14°C / 57°F187 hours95.77 mm / 3.77 In6 days1015 mb / 30 In
October9°C / 49°F4°C / 39°F7°C / 44°F137 hours73.13 mm / 2.88 In7 days1014 mb / 30 In
November2°C / 36°F-3°C / 27°F-0°C / 31°F114 hours59.18 mm / 2.33 In7 days1016 mb / 30 In
December-5°C / 24°F-11°C / 13°F-8°C / 18°F87 hours57.38 mm / 2.26 In9 days1017 mb / 31 In

Need more than one day of Thunder Bay history?

Download historical weather for Thunder Bay, 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 Thunder Bay

Region

Ontario

See the Thunder Bay 14-day forecast »

Hotels near Thunder Bay

Thunder Bay weather history: common questions

How far back does Thunder Bay 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 Thunder Bay 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