Yellowknife monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Yellowknife

Yellowknife average temperature chart (Celsius) Yellowknife average temperature chart (Fahrenheit)
Average monthly temperatures in Yellowknife (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -24 -19.9 -12.7 -0.8 9.9 17.7 20.6 17.9 9.9 1.1 -11 -20.2
°F -11.2 -3.8 9.1 30.6 49.7 63.9 69 64.3 49.8 34 12.2 -4.4

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Yellowknife monthly rainfall chart (mm) Yellowknife monthly rainfall chart (inches)
Average monthly rainfall in Yellowknife (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 16 13 11 11 17 24 36 42 29 36 25 16
inches 0.6 0.5 0.4 0.4 0.7 0.9 1.4 1.6 1.1 1.4 1 0.6
Rainy days 10 9 8 6 6 8 9 10 10 13 15 12

Average annual rainfall in Yellowknife: 222.3mm (87.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Yellowknife

Yellowknife average daily sunshine chart
Average daily sunshine Yellowknife
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2 4.5 7 9.9 12.7 0 6.4 10.2 5.8 2.4 1.9 1.1

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Yellowknife average minimum / maximum temperatures (Celsius) Yellowknife average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Yellowknife (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -32.2 -29.6 -24.8 -12.1 -0.3 7.9 11.6 9.7 3.2 -4.3 -18.8 -28.2
Max °C -23.8 -19.7 -12.5 -0.5 10.1 18 20.8 18.2 10.1 1.3 -10.8 -20
Min °F -26 -21.2 -12.6 10.2 31.5 46.1 52.9 49.4 37.7 24.4 -1.8 -18.8
Max °F -18.4 -12.3 -1.5 20.7 40.8 55.2 61.2 57 43.9 29.3 5.4 -11.4

Sea temperature

The graph below shows the average sea temperature.

Yellowknife average sea temperature chart (Celsius) Yellowknife average sea temperature chart (Fahrenheit)
Average sea temperature around Yellowknife in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 0.6 0.6 0.7 1.1 1.9 3.7 5.8 7.2 6.3 3.9 1.6 0.8
°F 33.1 33 33.2 33.9 35.4 38.7 42.4 44.9 43.3 38.9 35 33.4

Wind speed

The graph below shows the average wind speed.

Yellowknife average winspeed by month (km/h) Yellowknife average winspeed by month (mph)
Average wind speed in Yellowknife (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 13 14 16 16 15 14 14 15 16 15 12
mph 8 8 9 10 10 9 9 9 9 10 9 7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Yellowknife relative humidity averages
Average relative humidity in Yellowknife
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 69% 68% 68% 65% 67% 70% 73% 75% 80% 79% 73%

Other monthly averages

UV index Best time to go?

Yellowknife weather stats

Yellowknife weather statistics
Hottest month: July 20.6°C 69.1°F
Driest month: April 11mm 0.4ins
Sunniest month: June 0hrs
Coldest month: January -24°C -11.2°F
Wettest month: August 42mm 1.7ins
Warmest sea: August 7.2°C 45°F
Map showing location of Yellowknife (62.456, -114.35255) Yellowknife map pin © Google

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