| Climate data for Hamilton (John C. Munro Hamilton International Airport) WMO ID: 71263; coordinates: 43°10′18″N 79°56′03″W / 43.17167°N 79.93417°W; elevation: 237.7 m (780 ft); 1981−2010 normals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high humidex | 17.6 | 16.5 | 27.7 | 33.4 | 40.5 | 43.7 | 49.1 | 47.6 | 40.6 | 37.7 | 25.1 | 24.5 | 49.1 |
| Record high °C (°F) | 16.7 (62.1) |
17.9 (64.2) |
26.8 (80.2) |
29.7 (85.5) |
33.1 (91.6) |
35.0 (95.0) |
37.4 (99.3) |
36.4 (97.5) |
34.4 (93.9) |
30.3 (86.5) |
24.4 (75.9) |
20.7 (69.3) |
37.4 (99.3) |
| Mean daily maximum °C (°F) | −1.7 (28.9) |
−0.5 (31.1) |
4.3 (39.7) |
11.8 (53.2) |
18.5 (65.3) |
23.9 (75.0) |
26.5 (79.7) |
25.3 (77.5) |
21.2 (70.2) |
14.1 (57.4) |
7.5 (45.5) |
1.2 (34.2) |
12.7 (54.9) |
| Daily mean °C (°F) | −5.5 (22.1) |
−4.6 (23.7) |
−0.1 (31.8) |
6.7 (44.1) |
12.8 (55.0) |
18.3 (64.9) |
20.9 (69.6) |
20.0 (68.0) |
15.8 (60.4) |
9.3 (48.7) |
3.7 (38.7) |
−2.3 (27.9) |
7.9 (46.2) |
| Mean daily minimum °C (°F) | −9.3 (15.3) |
−8.6 (16.5) |
−4.5 (23.9) |
1.5 (34.7) |
7.1 (44.8) |
12.6 (54.7) |
15.2 (59.4) |
14.5 (58.1) |
10.4 (50.7) |
4.5 (40.1) |
−0.2 (31.6) |
−5.8 (21.6) |
3.1 (37.6) |
| Record low °C (°F) | −30.0 (−22.0) |
−26.7 (−16.1) |
−24.6 (−12.3) |
−12.8 (9.0) |
−3.9 (25.0) |
1.1 (34.0) |
5.6 (42.1) |
1.1 (34.0) |
−2.2 (28.0) |
−7.8 (18.0) |
−19.3 (−2.7) |
−26.8 (−16.2) |
−30.0 (−22.0) |
| Record low wind chill | −43.0 | −37.0 | −30.7 | −22.5 | −8.0 | 0.0 | 0.0 | 0.0 | −4.6 | −10.9 | −22.8 | −33.9 | −43.0 |
| Average precipitation mm (inches) | 64.0 (2.52) |
57.8 (2.28) |
68.4 (2.69) |
79.1 (3.11) |
79.4 (3.13) |
84.9 (3.34) |
100.7 (3.96) |
79.2 (3.12) |
81.9 (3.22) |
77.4 (3.05) |
84.3 (3.32) |
73.0 (2.87) |
929.8 (36.61) |
| Average rainfall mm (inches) | 29.7 (1.17) |
28.2 (1.11) |
42.6 (1.68) |
71.3 (2.81) |
78.7 (3.10) |
84.9 (3.34) |
100.7 (3.96) |
79.2 (3.12) |
81.9 (3.22) |
76.5 (3.01) |
74.4 (2.93) |
43.8 (1.72) |
791.7 (31.17) |
| Average snowfall cm (inches) | 40.8 (16.1) |
35.1 (13.8) |
26.5 (10.4) |
8.4 (3.3) |
0.5 (0.2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.7 (0.3) |
11.0 (4.3) |
33.5 (13.2) |
156.5 (61.6) |
| Average precipitation days (≥ 0.2 mm) | 16.6 | 13.8 | 13.6 | 13.1 | 12.6 | 11.2 | 11.3 | 10.3 | 11.0 | 12.5 | 14.3 | 15.9 | 156.2 |
| Average rainy days (≥ 0.2 mm) | 5.4 | 4.9 | 7.9 | 11.7 | 12.6 | 11.2 | 11.3 | 10.3 | 11.0 | 12.5 | 11.2 | 7.9 | 117.8 |
| Average snowy days (≥ 0.2 cm) | 14.5 | 11.6 | 8.1 | 2.7 | 0.10 | 0.0 | 0.0 | 0.0 | 0.0 | 0.43 | 4.8 | 12.0 | 54.2 |
| Average relative humidity (%) | 84.3 | 83.6 | 82.9 | 81.3 | 83.0 | 85.8 | 88.7 | 92.0 | 92.4 | 89.9 | 86.9 | 85.8 | 86.4 |
| Source: Environment and Climate Change Canada[1] | |||||||||||||
Notes edit
References
- ^ "John C. Munro Hamilton International Airport". Canadian Climate Normals 1981–2010. Environment and Climate Change Canada. Retrieved April 9, 2014.