Template:Markham weatherbox
| Climate data for Markham (Buttonville at Toronto Buttonville Airport) WMO ID: 71639; coordinates 43°51′44″N 79°22′12″W / 43.86222°N 79.37000°W; elevation: 198.1 m (650 ft); 1991–2020 normals, extremes 1895–present[a][1] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high humidex | 16.0 | 18.0 | 29.2 | 35.7 | 41.0 | 46.0 | 50.9 | 47.4 | 44.2 | 38.0 | 25.8 | 20.6 | 50.9 |
| Record high °C (°F) | 14.9 (58.8) |
17.3 (63.1) |
26.3 (79.3) |
31.7 (89.1) |
34.6 (94.3) |
36.6 (97.9) |
40.0 (104.0) |
37.8 (100.0) |
35.6 (96.1) |
31.0 (87.8) |
23.8 (74.8) |
20.0 (68.0) |
40.0 (104.0) |
| Mean daily maximum °C (°F) | −1.7 (28.9) |
−1.0 (30.2) |
4.6 (40.3) |
11.8 (53.2) |
19.3 (66.7) |
24.6 (76.3) |
27.3 (81.1) |
26.3 (79.3) |
21.9 (71.4) |
14.3 (57.7) |
7.4 (45.3) |
1.5 (34.7) |
13.0 (55.4) |
| Daily mean °C (°F) | −6.0 (21.2) |
−5.6 (21.9) |
−0.2 (31.6) |
6.5 (43.7) |
13.4 (56.1) |
18.8 (65.8) |
21.5 (70.7) |
20.6 (69.1) |
16.2 (61.2) |
9.4 (48.9) |
3.3 (37.9) |
−2.2 (28.0) |
8.0 (46.4) |
| Mean daily minimum °C (°F) | −10.1 (13.8) |
−10.1 (13.8) |
−5.0 (23.0) |
1.2 (34.2) |
7.4 (45.3) |
13.0 (55.4) |
15.6 (60.1) |
14.8 (58.6) |
10.4 (50.7) |
4.3 (39.7) |
−0.8 (30.6) |
−5.8 (21.6) |
2.9 (37.2) |
| Record low °C (°F) | −35.2 (−31.4) |
−34.4 (−29.9) |
−26.1 (−15.0) |
−15.6 (3.9) |
−5.6 (21.9) |
0.0 (32.0) |
2.2 (36.0) |
1.1 (34.0) |
−3.3 (26.1) |
−9.4 (15.1) |
−20.6 (−5.1) |
−33.9 (−29.0) |
−35.2 (−31.4) |
| Record low wind chill | −42.6 | −41.7 | −35.6 | −18.6 | −7.9 | 0.0 | 0.0 | 0.0 | −4.2 | −8.8 | −23.9 | −36.6 | −42.6 |
| Average precipitation mm (inches) | 63.5 (2.50) |
51.1 (2.01) |
52.3 (2.06) |
78.9 (3.11) |
80.0 (3.15) |
86.7 (3.41) |
85.2 (3.35) |
71.9 (2.83) |
83.1 (3.27) |
70.6 (2.78) |
76.7 (3.02) |
62.5 (2.46) |
862.4 (33.95) |
| Average rainfall mm (inches) | 27.6 (1.09) |
21.0 (0.83) |
32.8 (1.29) |
71.8 (2.83) |
79.9 (3.15) |
86.7 (3.41) |
85.2 (3.35) |
71.9 (2.83) |
83.1 (3.27) |
70.1 (2.76) |
65.5 (2.58) |
33.4 (1.31) |
728.9 (28.70) |
| Average snowfall cm (inches) | 40.3 (15.9) |
33.9 (13.3) |
19.7 (7.8) |
7.2 (2.8) |
0.1 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.6 (0.2) |
11.7 (4.6) |
32.8 (12.9) |
146.4 (57.6) |
| Average precipitation days (≥ 0.2 mm) | 17.0 | 13.1 | 12.0 | 12.6 | 12.3 | 11.6 | 11.2 | 10.0 | 10.5 | 13.3 | 14.3 | 15.5 | 153.5 |
| Average rainy days (≥ 0.2 mm) | 5.5 | 3.7 | 6.5 | 11.2 | 12.3 | 11.6 | 11.2 | 10.0 | 10.5 | 13.2 | 10.9 | 6.8 | 113.4 |
| Average snowy days (≥ 0.2 cm) | 14.2 | 11.0 | 7.2 | 2.8 | 0.13 | 0.0 | 0.0 | 0.0 | 0.0 | 0.42 | 4.8 | 10.6 | 51.1 |
| Average relative humidity (%) (at 1500 LST) | 68.3 | 63.5 | 57.7 | 52.9 | 52.8 | 53.9 | 52.9 | 55.2 | 57.6 | 62.1 | 66.8 | 70.4 | 59.5 |
| Source: Environment and Climate Change Canada[2][3] | |||||||||||||
References
- ^ "Technical Information and Metadata". Daily climate records (LTCE). Environment Canada. Retrieved October 15, 2024.
- ^ "Toronto Buttonville Airport". Canadian Climate Normals 1981−2010. Environment and Climate Change Canada. Retrieved October 10, 2024.
- ^ "Long Term Climate Extremes for Markham Area (Virtual Station ID: VSON85V)". Daily climate records (LTCE). Environment Canada. Retrieved October 15, 2024.
- ^ Long term records have been recorded at various climate stations in or nearby Markham since 1895. From 1895 to 1908 at Toronto Agincourt, 1908 to 1918 at Aurora, 1918 to 1959 at Oak Ridges, 1959 to 1986 at Richmond Hill and 1986 to present at Toronto Buttonville Airport