Hay River, Northwest Territories
Climate

Hay River, Northwest Territories

Section Title: Climate
Table Section Text: None

Climate data for Hay River Airport, 1981–2010 normals, extremes 1893–present

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)

Average high °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)

Average low °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

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