Hamilton, Ontario
Climate

Hamilton, Ontario

Section Title: Climate
Table Section Text: None

Climate data for Hamilton, Ontario (Royal Botanical Gardens), 1981−2010 normals, extremes 1866−present

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

Record high °C (°F)	18.3 (64.9)	18.8 (65.8)	27.2 (81.0)	31.1 (88.0)	36.1 (97.0)	38.9 (102.0)	41.1 (106.0)	38.9 (102.0)	37.8 (100.0)	32.2 (90.0)	26.1 (79.0)	21.2 (70.2)	41.1 (106.0)

Average high °C (°F)	−0.9 (30.4)	0.1 (32.2)	4.8 (40.6)	11.7 (53.1)	18.6 (65.5)	24.3 (75.7)	27.3 (81.1)	25.9 (78.6)	21.1 (70.0)	14.6 (58.3)	7.7 (45.9)	2.0 (35.6)	13.1 (55.6)

Daily mean °C (°F)	−4.7 (23.5)	−3.9 (25.0)	0.5 (32.9)	7.1 (44.8)	13.3 (55.9)	18.9 (66.0)	22.0 (71.6)	20.9 (69.6)	16.3 (61.3)	10.0 (50.0)	4.1 (39.4)	−1.4 (29.5)	8.6 (47.5)

Average low °C (°F)	−8.5 (16.7)	−7.9 (17.8)	−3.8 (25.2)	2.4 (36.3)	7.9 (46.2)	13.4 (56.1)	16.7 (62.1)	15.8 (60.4)	11.4 (52.5)	5.4 (41.7)	0.4 (32.7)	−4.7 (23.5)	4.0 (39.2)

Record low °C (°F)	−30.6 (−23.1)	−29.4 (−20.9)	−28.3 (−18.9)	−14.4 (6.1)	−7.2 (19.0)	−1.1 (30.0)	5.0 (41.0)	1.1 (34.0)	−3.9 (25.0)	−11.1 (12.0)	−22.8 (−9.0)	−27.8 (−18.0)	−30.6 (−23.1)

Average precipitation mm (inches)	56.8 (2.24)	57.2 (2.25)	63.7 (2.51)	73.3 (2.89)	85.5 (3.37)	72.7 (2.86)	82.7 (3.26)	89.7 (3.53)	80.9 (3.19)	71.6 (2.82)	91.3 (3.59)	71.9 (2.83)	897.1 (35.32)

Average rainfall mm (inches)	27.4 (1.08)	26.4 (1.04)	43.3 (1.70)	70.1 (2.76)	85.5 (3.37)	72.7 (2.86)	82.7 (3.26)	89.7 (3.53)	80.9 (3.19)	71.6 (2.82)	83.2 (3.28)	46.8 (1.84)	780.0 (30.71)

Average snowfall cm (inches)	32.4 (12.8)	31.1 (12.2)	18.3 (7.2)	2.8 (1.1)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	7.5 (3.0)	26.0 (10.2)	118.1 (46.5)

Average precipitation days (≥ 0.2 mm)	14.7	12.1	12.3	13.5	12.2	10.5	10.7	11.1	12.3	11.8	14.3	13.8	149.1

Average rainy days (≥ 0.2 mm)	5.7	5.0	8.8	12.6	12.2	10.5	10.7	11.1	12.3	11.8	12.8	7.6	120.9

Average snowy days (≥ 0.2 cm)	10.5	8.6	4.9	1.2	0.0	0.0	0.0	0.0	0.0	0.0	2.6	8.4	36.2

Mean monthly sunshine hours	87.2	113.4	152.4	182.2	244.0	279.1	303.5	262.6	177.7	148.6	88.9	71.0	2,110.6

Percent possible sunshine	30.0	38.3	41.3	45.4	53.7	60.7	65.1	60.7	47.3	43.4	30.4	25.3	45.1

Source: Environment Canada

Sentence(s)

The highest temperature recorded in Hamilton is 41.1 °C (106 °F) in July.

final_sentence: The highest temperature recorded in Hamilton is 41.1 °C (106 °F) in July.