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Yellowknife, Northwest Territories
H I S T O R I C A L   W E A T H E R   D A T A

Average Temperature
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
F 24 -13 -9 1 23 42 55 62 57 45 29 6 -9
C -4 -25 -22 -17 -5 5 12 16 13 7 -1 -14 -22
Years Charted: 21 Source: International Station Meteorological Climate Summary, Version 4.0


Average High Temperature
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
F 31 -7 -2 10 32 50 63 69 63 50 33 12 -4
C 0 -21 -18 -12 0 10 17 20 17 10 0 -11 -20
Years Charted: 21 Source: International Station Meteorological Climate Summary, Version 4.0


Average Low Temperature
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
F 16 -21 -18 -9 13 33 47 54 50 39 24 0 -17
C -8 -29 -27 -22 -10 0 8 12 10 3 -4 -17 -27
Years Charted: 21 Source: International Station Meteorological Climate Summary, Version 4.0


Highest Recorded Temperature
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
F 90 37 41 48 66 77 86 90 88 72 64 41 34
C 32 2 5 8 18 25 30 32 31 22 17 5 1
Years Charted: 21 Source: International Station Meteorological Climate Summary, Version 4.0


Lowest Recorded Temperature
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
F -54 -54 -53 -44 -27 -2 30 39 32 16 -17 -38 -47
C -47 -47 -47 -42 -32 -18 -1 3 0 -8 -27 -38 -43
Years Charted: 21 Source: International Station Meteorological Climate Summary, Version 4.0


Average Precipitation
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
in. 10.2 0.5 0.5 0.4 0.4 0.6 0.8 1.4 1.5 1.1 1.3 0.9 0.7
mm 259 12 12 10 10 15 20 35 38 27 33 22 17
Years Charted: 49 Source: International Station Meteorological Climate Summary, Version 4.0


Average Wind Speed
  Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
mph 9 8 9 10 10 10 9 9 9 10 11 10 8
km/h 14 12 14 16 16 16 14 14 14 16 18 16 12
Years Charted: 20 Source: International Station Meteorological Climate Summary, Version 4.0


Average Morning Relative Humidity
  Total Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
% 72 65 65 66 71 69 68 73 81 83 84 77 67
Years Charted: 20 Source: International Station Meteorological Climate Summary, Version 4.0


Average Afternoon Relative Humidity
  Total Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
% 59 64 62 54 53 46 45 47 53 63 77 76 67
Years Charted: 20 Source: International Station Meteorological Climate Summary, Version 4.0





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