October weather forecast
Yellowknife, Canada

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Purple and blue colors of a scenic aurora borealis seen in the hilly region of Yellowknife in Canada
Purple and blue colors of a scenic aurora borealis seen in the hilly region of Yellowknife in Canada

Weather in October

October continues to present varied shades of autumn in Yellowknife. The savory taste of summer gradually fades with a further decrease in temperature to reach a maximum average of 1.3°C (34.3°F). The receding warmth welcomes the pre-winter phase, preparing the city dwellers for the upcoming harsh season. A sharp dip in temperature and shorter days of October pave the way for the beginning of a long, cold winter. Sparse snowfall also marks the onset of winter from this month onwards.

Temperature

In Yellowknife, stepping into October signifies a significant temperature decrement, moving down from September's cool 10.8°C (51.4°F) to a cold 1.3°C (34.3°F). Yellowknife's average low temperature, barely cooler than the daytime high, steadies at a freezing cold -2.1°C (28.2°F) during October.

Humidity

In Yellowknife, the average relative humidity in October is 84%.

Rainfall

In Yellowknife, Canada, in October, it is raining for 5.5 days, with typically 19mm (0.75") of accumulated precipitation. In Yellowknife, Canada, during the entire year, the rain falls for 70.2 days and collects up to 207mm (8.15") of precipitation.

Snowfall

January through May, September through December are months with snowfall in Yellowknife. In October, it is snowing for 14 days. Throughout October, 98mm (3.86") of snow is accumulated. Throughout the year, in Yellowknife, there are 112.8 snowfall days, and 564mm (22.2") of snow is accumulated.

Daylight

The average length of the day in October in Yellowknife is 9h and 53min.
On the first day of the month, sunrise is at 7:47 am and sunset at 7:06 pm. On the last day of October, in Yellowknife, sunrise is at 9:10 am and sunset at 5:31 pm MDT.

Sunshine

The average sunshine in October is 3h.

UV index

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: In October, an average UV index of 1 transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

How cold is October in Yellowknife?

The average high-temperature and low-temperature in Yellowknife during October are 1.3°C (34.3°F) and -2.1°C (28.2°F) respectively.

What is the average humidity in October in Yellowknife?

In October, the average relative humidity is 84%.

How many days does it rain in October in Yellowknife?

In October, the rain falls for 5.5 days. Throughout October, 19mm (0.75") of precipitation is accumulated.

How many days does it snow in October in Yellowknife?

In Yellowknife, Canada, during October, snow falls for 14 days and regularly aggregates up to 98mm (3.86") of snow.

How many hours of daylight does Yellowknife have in October?

The average day length in October in Yellowknife is 9h and 53min.

What time are sunrise and sunset in October in Yellowknife?

On the first day of October, sunrise is at 7:47 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 9:10 am and sunset at 5:31 pm MDT.

How many hours of sunshine does Yellowknife have in October?

The average sunshine duration in October is 3h.

What are the months with the lowest UV index in Yellowknife?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Yellowknife.

What is the UV index reading in October in Yellowknife?

The average daily maximum UV index in October in Yellowknife is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Yellowknife, Canada

Average temperature in October - Yellowknife, Canada
  • Average high temperature in October: 1.3°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-18.8°C).

  • Average low temperature in October: -2.1°C

The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-25.2°C).

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Average pressure in October
Yellowknife, Canada

Average pressure in October - Yellowknife, Canada
  • Average pressure in October: 1013.4mbar

The month with the highest atmospheric pressure is February (1020.3mbar).
The month with the lowest atmospheric pressure is August (1009.9mbar).

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Average wind speed in October
Yellowknife, Canada

Average wind speed in October - Yellowknife, Canada
  • Average wind speed in October: 14.3km/h

The windiest month (with the highest average wind speed) is September (14.9km/h).
The calmest month (with the lowest average wind speed) is February (12.2km/h).

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Average humidity in October
Yellowknife, Canada

Average humidity in October - Yellowknife, Canada
  • Average humidity in October: 84%

The month with the highest relative humidity is January (98%).
The month with the lowest relative humidity is June (52%).

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Average rainfall in October
Yellowknife, Canada

Average rainfall in October - Yellowknife, Canada
  • Average rainfall in October: 19mm

The wettest month (with the highest rainfall) is August (41mm).
The driest month (with the least rainfall) is February (4mm).

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Average rainfall days in October
Yellowknife, Canada

Average rainfall days in October - Yellowknife, Canada
  • Average rainfall days in October: 5.5 days

The month with the highest number of rainy days is August (14.5 days).
The month with the least rainy days is February (0.3 days).

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Average snowfall in October
Yellowknife, Canada

Average snowfall in October - Yellowknife, Canada
  • Average snowfall in October: 98mm

The month with the highest snowfall is November (114mm).
The months with the least snowfall are June, July and August (0mm).

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Average snowfall days in October
Yellowknife, Canada

Average snowfall days in October - Yellowknife, Canada
  • Average snowfall days in October: 14 days

The month with the highest number of snowfall days is November (20.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Yellowknife, Canada

Average daylight in October / Average sunshine in October - Yellowknife, Canada
  • Average daylight in October: 9h and 5min

The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).

  • Average sunshine in October: 3h and 0min

The month with the most sunshine is June (Average sunshine: 13h and 6min).
The months with the least sunshine are January and December (Average sunshine: 1h and 0min).

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Average sunshine days in October
Yellowknife, Canada

Average sunshine days in October - Yellowknife, Canada
  • Average sunshine days in October: 13.6 days

The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (11.5 days).

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Average UV index in October
Yellowknife, Canada

Average UV index in October - Yellowknife, Canada
  • Average UV index in October: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in October
Yellowknife, Canada

Average cloud cover in October - Yellowknife, Canada
  • Average cloud cover in October: 71

The months with the most cloud cover are January and December (Cloud cover 87).
The months with the least cloud cover are June and July (Cloud cover 37).

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Average visibility in October
Yellowknife, Canada

Average visibility in October - Yellowknife, Canada
  • Average visibility in October: 8km

The months with the highest visibility are May, June and July (10km).
The months with the lowest visibility are January and February (5km).

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Yellowknife, Canada

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