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The weather in October in Thunder Bay

It's cool in October in Thunder Bay with an average temperature of 11°C. Temperatures this month range from a low of 6°C to a high of 16°C. At night, you can expect temperatures between -2°C and 7°C.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in October for Thunder Bay, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 28°C in 2023, Thunder Bay reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was -1°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -11°C to a highest value of 16°C.

Precipitation and snowfall

In October, there is an average of 84 mm of precipitation, spread over 12 days. Of the total precipitation, about 1,3 cm falls as snow in October. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in October for Thunder Bay

Click on any day in October to get detailed info about the usual weather on that day in Thunder Bay. Check out the historical temperatures and precipitation over the past 10 years on this day.

October weather comparison

  Thunder Bay New York
Average temperature 11°C 21°C
Max. temperature 16°C 26°C
Min. temperature -2°C -5°C
Total precipitation 84 mm 119 mm
Rainy days 12 days 13 days
Total snowfall 1,3 cm 0 cm
Snowy days 1 day 0 days

Start of October

The month of October starts in Thunder Bay with cool temps, averaging around 15°C during the day and nights around 6°C.

Mid October

By mid-October, daytime temps drop to around 12°C, with nights around 2°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of October

By the end of October, the average daytime temperature in Thunder Bay is around 8°C, while nighttime temps are about 1°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Thunder Bay for all months and discover the best travel time

Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.

Temperature charts

These charts show the average temperatures in October in Thunder Bay, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in October in Thunder Bay

Temperature in October in Thunder Bay over the years

Precipitation charts

These charts show the average amount of precipitation in October in Thunder Bay, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in October in Thunder Bay

Total precipitation in October in Thunder Bay over the years

Daily Snowfall in October in Thunder Bay

Snowfall in October in Thunder Bay per year

Daily UV index in October in Thunder Bay

This chart shows the average daily UV index in October in Thunder Bay, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in October in Thunder Bay

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Average weather in Thunder Bay by month

Click on a month below to see detailed weather info for Thunder Bay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.