Fort Simpson
Climate

Fort Simpson

Section Title: Climate
Table Section Text: None

Climate data for Fort Simpson Airport, 1981–2010 normals, extremes 1895–present

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year

Record high °C (°F)	13.2 (55.8)	15.6 (60.1)	16.1 (61.0)	25.5 (77.9)	32.8 (91.0)	35.0 (95.0)	36.6 (97.9)	35.4 (95.7)	30.0 (86.0)	25.6 (78.1)	13.3 (55.9)	14.5 (58.1)	36.6 (97.9)

Average high °C (°F)	−19.8 (−3.6)	−15.3 (4.5)	−6.4 (20.5)	5.8 (42.4)	15.0 (59.0)	21.8 (71.2)	23.7 (74.7)	20.9 (69.6)	13.7 (56.7)	1.8 (35.2)	−11.5 (11.3)	−17.5 (0.5)	2.7 (36.9)

Daily mean °C (°F)	−24.2 (−11.6)	−20.6 (−5.1)	−13.0 (8.6)	−0.4 (31.3)	8.7 (47.7)	15.3 (59.5)	17.4 (63.3)	14.7 (58.5)	8.2 (46.8)	−2.0 (28.4)	−15.5 (4.1)	−21.7 (−7.1)	−2.8 (27.0)

Average low °C (°F)	−28.5 (−19.3)	−25.9 (−14.6)	−19.7 (−3.5)	−6.7 (19.9)	2.2 (36.0)	8.8 (47.8)	11.2 (52.2)	8.5 (47.3)	2.6 (36.7)	−5.9 (21.4)	−19.4 (−2.9)	−25.9 (−14.6)	−8.2 (17.2)

Record low °C (°F)	−54.4 (−65.9)	−56.1 (−69.0)	−46.7 (−52.1)	−39.4 (−38.9)	−22.8 (−9.0)	−3.9 (25.0)	−1.1 (30.0)	−6.1 (21.0)	−20.6 (−5.1)	−27.8 (−18.0)	−46.1 (−51.0)	−53.3 (−63.9)	−56.1 (−69.0)

Average precipitation mm (inches)	18.9 (0.74)	17.6 (0.69)	15.4 (0.61)	17.0 (0.67)	29.4 (1.16)	51.3 (2.02)	61.1 (2.41)	61.4 (2.42)	32.2 (1.27)	39.4 (1.55)	24.8 (0.98)	19.1 (0.75)	387.6 (15.26)

Average rainfall mm (inches)	0.2 (0.01)	0.0 (0.0)	0.1 (0.00)	2.5 (0.10)	21.0 (0.83)	51.2 (2.02)	61.1 (2.41)	60.9 (2.40)	28.5 (1.12)	12.9 (0.51)	0.1 (0.00)	0.0 (0.0)	238.6 (9.39)

Average snowfall cm (inches)	27.4 (10.8)	24.2 (9.5)	19.0 (7.5)	17.4 (6.9)	7.6 (3.0)	0.1 (0.0)	0.0 (0.0)	0.5 (0.2)	4.2 (1.7)	29.0 (11.4)	33.4 (13.1)	24.3 (9.6)	187.0 (73.6)

Average precipitation days (≥ 0.2 mm)	10.9	10.6	9.4	5.6	8.8	11.3	12.1	11.0	10.6	11.8	12.0	10.7	124.7

Average rainy days (≥ 0.2 mm)	0.2	0.1	0.2	1.0	7.1	11.3	12.1	11.0	9.8	4.2	0.2	0.0	57.1

Average snowy days (≥ 0.2 cm)	11.6	11.7	9.8	5.0	2.3	0.0	0.0	0.1	1.4	9.2	12.7	11.3	75.1

Average relative humidity (%)	78.8	77.2	69.3	52.5	43.6	44.8	50.5	53.7	59.2	76.7	83.2	81.1	64.2

Mean monthly sunshine hours	55.7	95.1	180.6	248.6	293.4	313.0	307.1	263.8	163.9	77.8	49.4	30.0	2,078.3

Percent possible sunshine	28.5	38.0	49.6	56.3	53.8	53.7	53.3	53.4	42.0	25.0	22.8	17.7	41.2

Source: Environment Canada

Sentence(s)

The record low temperature recorded in Fort Simpson was −56.1 °C (−69 °F) in February.

final_sentence: The record low temperature recorded in Fort Simpson was −56.1 °C (−69 °F) in February.