| Climate data for Montreal (Montréal–Trudeau International Airport) WMO ID: 71627; coordinates 45°28′N 73°45′W / 45.467°N 73.750°W; elevation: 36 m (118 ft); 1991−2020 normals, extremes 1941−present | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high humidex | 13.5 | 14.7 | 28.0 | 33.8 | 40.9 | 45.0 | 45.8 | 46.8 | 42.8 | 34.1 | 26.2 | 18.1 | 46.8 |
| Record high °C (°F) | 13.9 (57.0) |
15.1 (59.2) |
25.8 (78.4) |
30.0 (86.0) |
36.6 (97.9) |
35.0 (95.0) |
36.1 (97.0) |
37.6 (99.7) |
33.5 (92.3) |
28.3 (82.9) |
24.3 (75.7) |
18.0 (64.4) |
37.6 (99.7) |
| Mean daily maximum °C (°F) | −5.0 (23.0) |
−3.4 (25.9) |
2.4 (36.3) |
11.3 (52.3) |
19.4 (66.9) |
24.2 (75.6) |
26.7 (80.1) |
25.7 (78.3) |
21.1 (70.0) |
13.2 (55.8) |
6.1 (43.0) |
−1.2 (29.8) |
11.7 (53.1) |
| Daily mean °C (°F) | −9.2 (15.4) |
−8.0 (17.6) |
−2.0 (28.4) |
6.2 (43.2) |
13.9 (57.0) |
19.0 (66.2) |
21.7 (71.1) |
20.6 (69.1) |
16.0 (60.8) |
8.9 (48.0) |
2.3 (36.1) |
−5.0 (23.0) |
7.0 (44.7) |
| Mean daily minimum °C (°F) | −13.5 (7.7) |
−12.4 (9.7) |
−6.5 (20.3) |
1.1 (34.0) |
8.3 (46.9) |
13.8 (56.8) |
16.7 (62.1) |
15.6 (60.1) |
10.9 (51.6) |
4.5 (40.1) |
−1.7 (28.9) |
−8.7 (16.3) |
2.3 (36.2) |
| Record low °C (°F) | −37.8 (−36.0) |
−33.9 (−29.0) |
−29.4 (−20.9) |
−15.0 (5.0) |
−4.4 (24.1) |
0.0 (32.0) |
6.1 (43.0) |
3.3 (37.9) |
−2.2 (28.0) |
−7.2 (19.0) |
−19.4 (−2.9) |
−32.4 (−26.3) |
−37.8 (−36.0) |
| Record low wind chill | −49.1 | −46.0 | −42.9 | −26.3 | −9.9 | 0.0 | 0.0 | 0.0 | −4.8 | −11.6 | −30.7 | −46.0 | −49.1 |
| Average precipitation mm (inches) | 85.8 (3.38) |
65.5 (2.58) |
77.2 (3.04) |
90.0 (3.54) |
85.6 (3.37) |
83.6 (3.29) |
91.1 (3.59) |
93.6 (3.69) |
89.2 (3.51) |
103.1 (4.06) |
84.2 (3.31) |
91.9 (3.62) |
1,040.8 (40.98) |
| Average rainfall mm (inches) | 32.8 (1.29) |
16.9 (0.67) |
37.3 (1.47) |
74.9 (2.95) |
85.6 (3.37) |
83.6 (3.29) |
91.2 (3.59) |
93.6 (3.69) |
89.2 (3.51) |
101.6 (4.00) |
67.4 (2.65) |
44.2 (1.74) |
818.3 (32.22) |
| Average snowfall cm (inches) | 52.0 (20.5) |
47.1 (18.5) |
37.1 (14.6) |
14.8 (5.8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.1 (0.4) |
16.3 (6.4) |
48.2 (19.0) |
216.6 (85.2) |
| Average precipitation days (≥ 0.2 mm) | 17.1 | 13.7 | 13.7 | 12.4 | 13.8 | 12.9 | 12.8 | 11.2 | 11.3 | 13.5 | 14.3 | 16.8 | 163.5 |
| Average rainy days (≥ 0.2 mm) | 4.5 | 3.8 | 7.0 | 11.4 | 13.7 | 12.9 | 12.8 | 11.2 | 11.3 | 13.2 | 11.1 | 6.7 | 119.6 |
| Average snowy days (≥ 0.2 cm) | 15.4 | 12.4 | 9.0 | 3.0 | 0.04 | 0.0 | 0.0 | 0.0 | 0.0 | 0.63 | 4.8 | 12.8 | 58.1 |
| Average relative humidity (%) (at 15:00 LST) | 68.1 | 63.0 | 57.8 | 50.7 | 49.8 | 53.6 | 55.5 | 56.1 | 58.2 | 61.4 | 66.4 | 71.9 | 59.4 |
| Mean monthly sunshine hours | 101.2 | 127.8 | 164.3 | 178.3 | 228.9 | 240.3 | 271.5 | 246.3 | 182.2 | 143.5 | 83.6 | 83.6 | 2,051.3 |
| Percent possible sunshine | 35.7 | 43.7 | 44.6 | 44.0 | 49.6 | 51.3 | 57.3 | 56.3 | 48.3 | 42.2 | 29.2 | 30.7 | 44.4 |
| Average ultraviolet index | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 7 | 5 | 3 | 1 | 1 | 4 |
| Source: Environment and Climate Change Canada[1][2][3][4][5][6] and Weather Atlas[7] | |||||||||||||
References
- ^ "Canadian Climate Normals 1991–2020". Environment and Climate Change Canada. Retrieved June 12, 2024.
- ^ "Montreal/Pierre Elliott Trudeau International Airport". Canadian Climate Normals 1981–2010. October 31, 2011. Archived from the original on October 26, 2014. Retrieved February 24, 2014.
- ^ "Daily Data Report for March 2012". Canadian Climate Data. October 31, 2011. Archived from the original on September 11, 2016. Retrieved June 12, 2016.
- ^ "Daily Data Report for May 2020". Canadian Climate Data. October 31, 2011. Archived from the original on May 13, 2022. Retrieved May 13, 2022.
- ^ "Daily Data Report for November 2022". Canadian Climate Data. October 31, 2011. Retrieved November 7, 2022.
- ^ ""Hourly Data Report for November 5, 2022". Canadian Climate Data. October 31, 2011. Retrieved November 7, 2022.
- ^ "Montreal, Canada - Detailed climate information and monthly weather forecast". Weather Atlas. Yu Media Group. Archived from the original on July 6, 2019. Retrieved July 6, 2019.