| Climate data for Fort Smith (Fort Smith Airport) WMO ID: 71934; coordinates 60°01′13″N 111°57′43″W / 60.02028°N 111.96194°W; elevation: 205.1 m (673 ft); 1991−2020 normals, extremes 1913−present[a] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high humidex | 8.4 | 11.6 | 16.1 | 29.6 | 32.7 | 38.9 | 41.7 | 38.5 | 31.9 | 25.9 | 12.2 | 8.9 | 41.7 |
| Record high °C (°F) | 8.7 (47.7) |
9.9 (49.8) |
16.7 (62.1) |
24.0 (75.2) |
31.0 (87.8) |
39.9 (103.8) |
35.1 (95.2) |
33.9 (93.0) |
29.4 (84.9) |
24.6 (76.3) |
12.0 (53.6) |
9.4 (48.9) |
39.9 (103.8) |
| Mean daily maximum °C (°F) | −17.4 (0.7) |
−13.2 (8.2) |
−5.1 (22.8) |
5.6 (42.1) |
14.8 (58.6) |
21.6 (70.9) |
23.6 (74.5) |
21.2 (70.2) |
14.2 (57.6) |
4.3 (39.7) |
−7.0 (19.4) |
−14.5 (5.9) |
4.0 (39.2) |
| Daily mean °C (°F) | −21.9 (−7.4) |
−18.8 (−1.8) |
−11.9 (10.6) |
−0.7 (30.7) |
8.2 (46.8) |
15.0 (59.0) |
17.4 (63.3) |
15.1 (59.2) |
8.9 (48.0) |
0.5 (32.9) |
−10.6 (12.9) |
−18.6 (−1.5) |
−1.4 (29.5) |
| Mean daily minimum °C (°F) | −26.2 (−15.2) |
−24.3 (−11.7) |
−18.6 (−1.5) |
−7.1 (19.2) |
1.6 (34.9) |
8.4 (47.1) |
11.1 (52.0) |
9.0 (48.2) |
3.5 (38.3) |
−3.3 (26.1) |
−14.1 (6.6) |
−22.6 (−8.7) |
−6.9 (19.6) |
| Record low °C (°F) | −49.4 (−56.9) |
−53.9 (−65.0) |
−44.4 (−47.9) |
−40.6 (−41.1) |
−23.0 (−9.4) |
−6.1 (21.0) |
−3.3 (26.1) |
−5.6 (21.9) |
−12.8 (9.0) |
−27.9 (−18.2) |
−40.6 (−41.1) |
−57.2 (−71.0) |
−57.2 (−71.0) |
| Record low wind chill | −60.4 | −58.4 | −55.7 | −50.4 | −26.2 | −8.0 | 0.0 | −4.7 | −17.8 | −35.3 | −48.8 | −59.6 | −60.4 |
| Average precipitation mm (inches) | 17.6 (0.69) |
12.7 (0.50) |
14.6 (0.57) |
13.7 (0.54) |
27.2 (1.07) |
47.0 (1.85) |
58.5 (2.30) |
57.4 (2.26) |
42.9 (1.69) |
30.1 (1.19) |
21.9 (0.86) |
16.5 (0.65) |
360.1 (14.18) |
| Average rainfall mm (inches) | 0.1 (0.00) |
0.1 (0.00) |
0.4 (0.02) |
6.6 (0.26) |
22.0 (0.87) |
48.2 (1.90) |
60.2 (2.37) |
61.8 (2.43) |
45.2 (1.78) |
15.7 (0.62) |
1.1 (0.04) |
0.4 (0.02) |
261.7 (10.30) |
| Average snowfall cm (inches) | 24.5 (9.6) |
17.2 (6.8) |
17.0 (6.7) |
7.5 (3.0) |
5.6 (2.2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.8 (0.3) |
18.9 (7.4) |
29.0 (11.4) |
21.9 (8.6) |
142.2 (56.0) |
| Average precipitation days (≥ 0.2 mm) | 13.3 | 10.4 | 10.0 | 7.5 | 9.2 | 10.7 | 12.2 | 13.5 | 12.6 | 14.6 | 13.7 | 13.0 | 140.8 |
| Average rainy days (≥ 0.2 mm) | 0.15 | 0.12 | 0.54 | 2.7 | 6.6 | 10.0 | 12.2 | 13.2 | 12 | 8.2 | 1.4 | 0.46 | 67.6 |
| Average snowy days (≥ 0.2 cm) | 12.9 | 10.2 | 8.6 | 3.6 | 1.9 | 0.0 | 0.0 | 0.0 | 0.64 | 8.0 | 14.8 | 14.0 | 74.6 |
| Average relative humidity (%) (at 1500 LST) | 78.6 | 74.7 | 62.2 | 47.7 | 40.1 | 43.0 | 48.3 | 52.6 | 56.8 | 71.1 | 83.1 | 81.9 | 61.7 |
| Mean monthly sunshine hours | 57.1 | 113.7 | 176.7 | 243 | 285.9 | 299.1 | 301 | 261.7 | 132 | 87.3 | 43.5 | 28.3 | 2,029.3 |
| Source: Environment and Climate Change Canada[3] (June maximum)[4] (December minimum)[5] (sun 1951–1980) [6] | |||||||||||||
Notes
edit- ^ Climate data was recorded at Fort Smith from July 1913 to May 1946 and at Fort Smith Airport from September 1943 to present.[1][2]
References
- ^ "Fort Smith (1913−1929)". Canadian Climate Data. Environment and Climate Change Canada. Retrieved 2016-07-29.
- ^ "Fort Smith (1928−1946)". Canadian Climate Data. Environment and Climate Change Canada. Retrieved 2016-07-29.
- ^ "Fort Smith A". Canadian Climate Normals 1991-2020 Data. Environment and Climate Change Canada. Climate ID: 2202200. Retrieved 2024-11-12.
- ^ "Fort Smith had its hottest day in 80 years: preliminary data". Environment and Climate Change Canada. CBC. Retrieved 2021-06-30.
- ^ "Daily Data Report for December 1917". Canadian Climate Data. Environment and Climate Change Canada. Retrieved 2016-07-29.
- ^ "Canadian Climate Normals 1951–1980 Volume 7: Bright Sunshine". Environment and Climate Change Canada. Retrieved 2020-10-24.