October Weather in Yellowknife, Canada

Last updated: April 22, 2025

In Yellowknife, Canada, October showcases a striking transition as temperatures begin to drop, with a maximum reaching 12°C (54°F) and an average hovering around 0°C (33°F). As the month progresses, the minimum temperature can plummet to -13°C (9°F), setting the stage for the approach of winter. Rainfall is moderate, totaling 24 mm (0.9 in) over 7 days, contributing to the region's characteristic high humidity of 94%. This month marks a shift in the season, offering a unique blend of crisp air, vibrant autumn colors, and the whispers of winter on the horizon.

October Temperature in Yellowknife

As October unfolds in Yellowknife, Canada, temperatures begin their descent into the chill of winter, showcasing a significant shift from the mild fall preceding it. This month greets residents with minimum temperatures around -13°C (9°F), allowing a brisk sense of autumn to linger in the air. On average, the mercury hovers around 0°C (33°F), providing a stark contrast to the warmer September, where temperatures still danced around 8°C (47°F). As the month progresses, highs can reach up to 12°C (54°F), but the creeping cold is unmistakable. This transition marks the end of sweater weather and the beginning of preparations for the frosty months ahead, highlighting Yellowknife's dramatic climate shifts as winter approaches.

October Weather in Yellowknife: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Yellowknife, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec-12-131194156625946328-8
Data source: Temperature data for Yellowknife generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Yellowknife

In October, Yellowknife begins to transition into the colder months, with precipitation averaging 24 mm (0.9 in) over about 7 days. This amount is a slight increase from the previous month, September, which saw 28 mm (1.1 in) spread across 6 days. Interestingly, October's rainfall marks a peak before winter sets in, reflecting the onset of seasonal changes that brings cooler temperatures and shorter days. As the year progresses into the colder months, precipitation levels typically decrease, suggesting that October serves as a pivotal month in the shift from autumn's lingering warmth to the harshness of winter, as snowfall increasingly takes the place of rain in the coming months.

October Precipitation Trends in Yellowknife

The chart displays monthly precipitation patterns in Yellowknife, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec161118162039565528242014
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Yellowknife

As the crisp air of October settles in Yellowknife, Canada, the humidity starts to rise again, reaching 94%—a noticeable increase from the drier summer months. This autumnal shift follows a trend observed throughout the year, where humidity typically peaks during the colder months. After dipping to 69% in June, humidity fluctuates, climbing back up notably in September and then stabilizing in October before reaching nearly 100% by December. This pattern highlights the transition from the relatively dry summer season to the damp, chilly embrace of winter, creating a unique atmospheric experience in Yellowknife that emphasizes the stark contrasts of its climate.

October Average Humidity in Yellowknife

This chart illustrates the average monthly humidity levels in Yellowknife, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec98%97%94%86%76%69%73%79%86%94%98%100%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Yellowknife

In Yellowknife, Canada, the October UV Index stands at a manageable level of 2, indicating a low exposure risk and a safe burn time of 45 minutes for most individuals. As autumn settles in, the UV index decreases from the summer peaks of 6 in July and June, transitioning through moderate levels in spring and gradually declining throughout the fall. This trend reflects the region's characteristic seasonal fluctuations, where residents can enjoy the crisp air while still being mindful of UV exposure. As you prepare for outdoor activities, remember this seasonal rhythm and refer to the comprehensive information available at Yellowknife UV Index to stay sun-safe.

Maximum UV Index Levels in Yellowknife for October

The chart shows the monthly maximum UV Index (UVI) for Yellowknife in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec113456654211
Data source: Yellowknife October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

October Sunshine in Yellowknife

In October, Yellowknife experiences a significant transition, with about 127 hours of sunshine illuminating the city as it shifts from the vibrant glow of summer to the cooler embrace of winter. This month marks a noticeable decline from the 209 hours enjoyed in September, highlighting the dramatic change in daylight as fall progresses. Interestingly, the sunshine hours begin to dip sharply after the peak of July, which boasts an impressive 378 hours. As daylight shrinks, a crispness fills the air, offering a beautiful backdrop for the autumn foliage and a softer, subdued light that paints the landscape. Although the days are getting shorter, October still delivers ample opportunities to bask in the remaining warmth of the sun before the long winter sets in.

Monthly Sunshine Duration in Yellowknife: October Highlighted

The October sunshine duration represents the total number of hours Yellowknife experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec77h156h233h271h367h342h378h301h209h127h95h80h
Data source: Yellowknife October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yellowknife During October

In October, Yellowknife experiences a modest 32% chance of sunny weather, a notable dip from the warmer months that precede it. This reflects a gradual decline in sunshine after the more optimistic predictions of late spring and summer, where the chances hovered between 41% and 45%. As the season transitions and the temperatures drop, the likelihood of clear skies wanes, highlighting a trend where September offers a mere 20% chance, suggesting that October is a pivotal month of change. While the sun may not shine as brightly, October still holds potential for those who appreciate the crisp air and vibrant autumn colors.

Percentage of Sunny Days in October in Yellowknife

The chart illustrates the percentage of sunny days in Yellowknife throughout the year, with October highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Yellowknife experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%37%30%28%45%43%41%39%20%32%20%13%
Data source: Yellowknife October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yellowknife in October

As autumn settles in Yellowknife, the shift in daylight becomes more pronounced, with October receiving 9 hours of daylight. This marks a noticeable decline from the sun-drenched days of summer, where June peaks at an impressive 19 hours. The transition is evident as we emerge from the long summer days, and the amount of daylight steadily decreases from 12 hours in September. With the onset of October, the vibrant fall colors and shorter days invite a sense of change, reminding residents of the impending winter. The trend of diminishing daylight continues, foreshadowing November's return to just 6 hours and a gradual descent into the long, dark days of winter.

Average Daylight Hours in Yellowknife for October

The chart illustrates the variation in daylight duration in Yellowknife throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 7m8h 51m11h 52m14h 57m17h 55m19h 46m18h 41m15h 52m12h 50m9h 48m6h 52m5h 6m
Data source: Yellowknife daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Yellowknife

As October settles in Yellowknife, Canada, a noticeable shift in the breeze ushers in the autumn chill. With an average wind speed of 4.1 m/s (9 mph), October marks a peak in the wind patterns for the year, slightly surpassing the earlier months. This increase reflects the changing seasons, as the winds become sharper and more pronounced compared to the relatively calm summer months. Following a consistent trend through much of the year, where speeds hovered around 3.0 to 3.8 m/s, October serves as a reminder of the impending winter that will soon blanket the landscape. As the crisp air invigorates the spirit, locals brace for the colder days ahead, with the wind becoming a defining feature of the vibrant autumnal atmosphere.

Average October Wind Speed in Yellowknife

The chart displays monthly wind speed patterns in Yellowknife, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.03.73.73.83.73.63.43.74.1 m/s4.03.0
Data source: Yellowknife October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Yellowknife Compares to Other Months

The weather in Yellowknife changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Yellowknife and find detailed weather information for every month.

In October, the weather in Yellowknife presents a relatively mild climate with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 12°C (54°F), averaging around 0°C (33°F). The month sees about 24 mm (0.9 in) of precipitation spread over 7 days, contributing to a high humidity level of 94%. In stark contrast, January brings much harsher conditions, characterized by frigid temperatures that can plummet to -44°C (-47°F) at their lowest, with an average of -24°C (-11°F) and a maximum of only -7°C (20°F). Despite the lower total precipitation of 16 mm (0.6 in) over just 4 days, the humidity remains elevated at 98%. For more detailed insights, you can explore Yellowknife weather in January.

When comparing the weather in October to that in February, it's clear that February is far colder and harsher. In October, temperatures range from a minimum of -13°C (9°F) to a maximum of 12°C (54°F), with an average of around 0°C (33°F) and a precipitation level of 24 mm (0.9 in) over about 7 days. In contrast, February experiences extreme cold, with temperatures plummeting to a minimum of -48°C (-54°F), an average of -25°C (-13°F), and a maximum of just -1°C (30°F). Precipitation in February is lower at 11 mm (0.4 in), but it occurs over only 2 days. The humidity in both months remains high, peaking at 97% in February, which can intensify the biting chill. For more detailed insights, you can visit Yellowknife weather in February.

In comparing the weather in October and March, we can see significant differences in temperatures despite both months experiencing high humidity levels of 94%. October generally offers milder conditions, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 12°C (54°F) and an average of around 0°C (33°F). In contrast, March is notably colder, with temperatures dipping as low as -43°C (-46°F) and an average of -17°C (2°F), though it reaches up to 7°C (44°F) at its highest. Precipitation is somewhat similar, with October receiving 24 mm (0.9 in) over 7 days compared to March's 18 mm (0.7 in) over 5 days. For a more detailed look at the March weather in Yellowknife, visit Yellowknife weather in March.

October and April present contrasting weather patterns in terms of temperature and precipitation. In October, temperatures range from a minimum of -13°C (9°F) to a maximum of 12°C (54°F), with an average of around 0°C (33°F) and a humidity level of 94%. This month sees about 24 mm (0.9 in) of precipitation spread over approximately 7 days. Conversely, April experiences colder temperatures, with a minimum of -31°C (-24°F) and an average sitting at -7°C (19°F), while reaching a maximum of 13°C (55°F). During this month, precipitation is lower at 16 mm (0.6 in), occurring over just 4 days, with humidity at 86%. For a more detailed look at April weather, visit Yellowknife weather in April.

When comparing the weather in October and May, notable differences emerge in temperature and precipitation patterns. In October, temperatures range from a chilly -13°C (9°F) to a maximum of 12°C (54°F), with an average of 0°C (33°F), while May boasts a broader range, from -22°C (-8°F) to a warm 26°C (79°F), averaging around 5°C (41°F). Precipitation is relatively similar, with October receiving 24 mm (0.9 in) over approximately 7 days, and May slightly less at 20 mm (0.8 in) over just 4 days. Additionally, October's humidity reaches a high of 94%, significantly more than May's 76%. For more information on the specific weather conditions in May, check out Yellowknife weather in May.

In October, the weather in Yellowknife is significantly cooler with temperatures ranging from a chilly -13°C (9°F) at night to a mild 12°C (54°F) during the day, averaging around 0°C (33°F). The month sees a fairly high humidity level of 94% and experiences 24 mm (0.9 in) of precipitation over about 7 days. In contrast, June brings a much warmer and more pleasant atmosphere, with temperatures dipping to a minimum of -2°C (29°F) and soaring to a maximum of 28°C (83°F), averaging at a comfortable 13°C (56°F). Although June sees slightly more precipitation at 39 mm (1.5 in) across the same number of days, the humidity is notably lower at 69%. For those interested in exploring the June climate further, visit Yellowknife weather in June.

In October, the weather is significantly colder than in July, with temperatures ranging from a frigid -13°C (9°F) at night to a mild maximum of 12°C (54°F) during the day. In contrast, July enjoys much warmer temperatures, with an average of 17°C (62°F) and peaks reaching up to 30°C (86°F). While October experiences higher humidity at 94% and receives 24 mm (0.9 in) of precipitation over 7 days, July is relatively drier, with 56 mm (2.2 in) of rain across 9 days and a lower humidity level of 73%. For more details, you can check Yellowknife weather in July.

In October, temperatures in Yellowknife are noticeably colder than in August, with minimums plunging to -13°C (9°F) and average daily temperatures hovering around 0°C (33°F). In contrast, August enjoys a much milder climate, where temperatures can reach as high as 32°C (90°F), with an average of 15°C (59°F). October also sees more humidity at 94% compared to 79% in August, making the air feel chillier. Additionally, while October experiences 24 mm (0.9 in) of precipitation over about 7 days, August records higher rainfall of 55 mm (2.2 in) across 10 days. For a closer look at the summer weather, you can explore Yellowknife weather in August.

In comparing the weather between September and October, a noticeable shift occurs as autumn progresses. September tends to be milder, with an average temperature of 8°C (47°F) and maximum highs reaching 22°C (71°F). In contrast, October brings a significant drop in temperature, averaging around 0°C (33°F) and featuring a maximum of only 12°C (54°F), with a minimum temperature plunging to -13°C (9°F). Though October sees a slight decrease in total precipitation to 24 mm (0.9 in), the humidity rises to 94%, compared to September's 86%. Rainfall is spread similarly, occurring over 7 days in October compared to 6 days in September. For more detailed insights, you can visit Yellowknife weather in September.

October and November in Yellowknife present a stark contrast in weather patterns. October offers milder conditions, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 12°C (54°F), accompanied by an average temperature of 0°C (33°F) and relatively lower humidity at 94%. Precipitation is moderate, totaling 24 mm (0.9 in) over about 7 days.

In comparison, November plunges into much colder territory, where temperatures drop significantly, with a minimum of -31°C (-24°F) and an average of -13°C (8°F), only reaching a maximum of 4°C (40°F). Despite slightly less precipitation at 20 mm (0.8 in) over 6 days, the humidity increases to 98%, making the air feel even colder. For a more detailed look at what to expect during this month, check out Yellowknife weather in November.

In October, the weather in Yellowknife tends to be milder, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 12°C (54°F) and an average of around 0°C (33°F). The precipitation level is relatively higher at 24 mm (0.9 in), occurring over approximately 7 days, while humidity hovers around a high 94%. In contrast, December brings much colder conditions, featuring a minimum temperature of -42°C (-44°F) and an average of -22°C (-8°F), with a peak of just 1°C (34°F). Precipitation in December is slightly lower at 14 mm (0.6 in) spread over about 4 days, accompanied by a staggering 100% humidity. For more details, you can check Yellowknife weather in December.

Compare Yellowknife's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Yellowknife

As October unfolds in Yellowknife, the weather takes a noticeable turn, offering a unique blend of crisp autumn air and occasional moisture. While temperatures average around freezing, a distinct chill sets in as minimums dip significantly, contrasting sharply with the mild summer months. The increased precipitation, typically over seven days, contributes to the notable humidity, creating a damp atmosphere that signals the onset of winter. This transitional month is characterized by fleeting sunlight and the vibrant hues of fall foliage, making it a captivating time to experience the beauty of Yellowknife. For more insights on what to expect throughout the year, explore the Yellowknife Climate.