London, Ontario
Climate

London, Ontario

Section Title: Climate
Table Section Text: None

Climate data for London, Ontario (London International Airport), 1981–2010 normals, extremes 1871–present

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

Record high °C (°F)	16.7 (62.1)	18.3 (64.9)	27.2 (81.0)	30.6 (87.1)	34.4 (93.9)	38.2 (100.8)	38.9 (102.0)	41.1 (106.0)	36.7 (98.1)	30.3 (86.5)	24.4 (75.9)	18.5 (65.3)	41.1 (106.0)

Average high °C (°F)	−1.9 (28.6)	−0.5 (31.1)	4.4 (39.9)	12.1 (53.8)	19.0 (66.2)	24.0 (75.2)	26.4 (79.5)	25.3 (77.5)	21.1 (70.0)	14.2 (57.6)	7.2 (45.0)	0.9 (33.6)	12.7 (54.9)

Daily mean °C (°F)	−5.6 (21.9)	−4.5 (23.9)	−0.1 (31.8)	6.8 (44.2)	13.1 (55.6)	18.3 (64.9)	20.8 (69.4)	19.7 (67.5)	15.5 (59.9)	9.2 (48.6)	3.4 (38.1)	−2.6 (27.3)	7.9 (46.2)

Average low °C (°F)	−9.2 (15.4)	−8.6 (16.5)	−4.5 (23.9)	1.5 (34.7)	7.2 (45.0)	12.6 (54.7)	15.1 (59.2)	14.0 (57.2)	9.9 (49.8)	4.3 (39.7)	−0.4 (31.3)	−6.1 (21.0)	3.0 (37.4)

Record low °C (°F)	−32.2 (−26.0)	−31.7 (−25.1)	−28.3 (−18.9)	−17.8 (0.0)	−5.0 (23.0)	−1.1 (30.0)	4.4 (39.9)	1.5 (34.7)	−3.3 (26.1)	−11.1 (12.0)	−18.3 (−0.9)	−30.0 (−22.0)	−32.2 (−26.0)

Average precipitation mm (inches)	74.2 (2.92)	65.5 (2.58)	71.5 (2.81)	83.4 (3.28)	89.8 (3.54)	91.7 (3.61)	82.7 (3.26)	82.9 (3.26)	103.0 (4.06)	81.3 (3.20)	98.0 (3.86)	87.5 (3.44)	1,011.5 (39.82)

Average rainfall mm (inches)	33.4 (1.31)	33.6 (1.32)	46.3 (1.82)	74.7 (2.94)	89.4 (3.52)	91.7 (3.61)	82.7 (3.26)	82.9 (3.26)	103.0 (4.06)	78.1 (3.07)	83.2 (3.28)	46.9 (1.85)	845.9 (33.30)

Average snowfall cm (inches)	49.3 (19.4)	38.4 (15.1)	29.4 (11.6)	9.4 (3.7)	0.4 (0.2)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	3.2 (1.3)	16.6 (6.5)	47.6 (18.7)	194.3 (76.5)

Average precipitation days (≥ 0.2 mm)	18.8	15.1	15.3	14.1	12.7	11.6	11.2	10.4	12.1	13.1	15.8	18.0	168.0

Average rainy days (≥ 0.2 mm)	6.3	5.4	8.3	12.0	12.7	11.6	11.3	10.4	12.1	13.0	11.6	7.8	122.4

Average snowy days (≥ 0.2 cm)	15.3	12.1	9.1	3.5	0.18	0.0	0.0	0.0	0.0	1.2	5.7	13.2	60.3

Average relative humidity (%)	75.9	71.9	65.0	56.9	54.8	57.0	57.6	59.7	59.9	63.1	72.0	76.9	64.2

Mean monthly sunshine hours	64.4	89.9	124.0	158.0	219.6	244.3	261.6	217.7	165.1	128.7	67.4	52.1	1,792.6

Percent possible sunshine	22.1	30.4	33.6	39.4	48.4	53.2	56.2	50.4	43.9	37.5	23.0	18.5	38.1

Source: Environment Canada

Sentence(s)

The lowest temperature recorded was −32.2 °C (−26 °F) in January.

final_sentence: The lowest temperature recorded was −32.2 °C (−26 °F) in January.