Hay River, Northwest Territories
Climate
Table:
Climate data for Hay River Airport, 1981–2010 normals, extremes 1893–present[a]

Month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Record high °C (°F)

10.7
(51.3)

13.9
(57.0)

15.6
(60.1)

26.0
(78.8)

33.3
(91.9)

34.0
(93.2)

35.6
(96.1)

36.7
(98.1)

31.7
(89.1)

25.6
(78.1)

15.0
(59.0)

14.4
(57.9)

36.7
(98.1)

Mean daily maximum °C (°F)

−17.3
(0.9)

−14.2
(6.4)

−7.8
(18.0)

2.9
(37.2)

10.7
(51.3)

18.0
(64.4)

21.2
(70.2)

19.6
(67.3)

13.2
(55.8)

4.1
(39.4)

−7.7
(18.1)

−14.4
(6.1)

2.4
(36.3)

Daily mean °C (°F)

−21.8
(−7.2)

−19.6
(−3.3)

−13.8
(7.2)

−2.7
(27.1)

5.4
(41.7)

12.5
(54.5)

16.1
(61.0)

14.6
(58.3)

8.7
(47.7)

0.5
(32.9)

−11.6
(11.1)

−18.8
(−1.8)

−2.5
(27.5)

Mean daily minimum °C (°F)

−26.2
(−15.2)

−24.9
(−12.8)

−19.8
(−3.6)

−8.1
(17.4)

0.0
(32.0)

7.0
(44.6)

10.9
(51.6)

9.5
(49.1)

4.1
(39.4)

−3.2
(26.2)

−15.4
(4.3)

−23.1
(−9.6)

−7.4
(18.7)

Record low °C (°F)

−52.2
(−62.0)

−50.6
(−59.1)

−47.2
(−53.0)

−40.0
(−40.0)

−24.4
(−11.9)

−6.1
(21.0)

−1.7
(28.9)

−6.7
(19.9)

−15.6
(3.9)

−26.1
(−15.0)

−40.8
(−41.4)

−51.1
(−60.0)

−52.2
(−62.0)

Average precipitation mm (inches)

16.4
(0.65)

14.3
(0.56)

14.4
(0.57)

12.6
(0.50)

23.3
(0.92)

31.9
(1.26)

43.0
(1.69)

58.7
(2.31)

44.6
(1.76)

35.7
(1.41)

24.8
(0.98)

16.8
(0.66)

336.4
(13.24)

Average rainfall mm (inches)

0.1
(0.00)

0.2
(0.01)

0.2
(0.01)

4.3
(0.17)

18.0
(0.71)

31.9
(1.26)

43.0
(1.69)

58.7
(2.31)

43.0
(1.69)

16.8
(0.66)

0.9
(0.04)

0.3
(0.01)

217.4
(8.56)

Average snowfall cm (inches)

19.2
(7.6)

16.9
(6.7)

16.4
(6.5)

8.7
(3.4)

5.2
(2.0)

0.1
(0.0)

0.0
(0.0)

0.0
(0.0)

1.5
(0.6)

19.9
(7.8)

30.4
(12.0)

20.7
(8.1)

138.9
(54.7)

Average precipitation days (≥ 0.2 mm)

11.3

9.7

8.5

5.0

8.0

8.8

9.9

11.3

12.2

12.6

14.2

11.4

122.8

Average rainy days (≥ 0.2 mm)

0.1

0.2

0.2

2.0

6.7

8.8

9.9

11.3

11.9

6.2

1.0

0.6

58.9

Average snowy days (≥ 0.2 cm)

12.0

10.1

8.7

3.7

1.8

0.1

0.0

0.0

0.8

8.1

14.5

12.4

72.2

Average relative humidity (%)

69.2

66.3

61.3

60.2

55.0

54.4

57.6

59.9

62.5

70.6

78.0

73.7

64.0

Source: Environment Canada[30][32][33][34][31][35][36][37][38][39][40][41][42][43][44][45]

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