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| Climatological Information for Thunder Bay, Canada |
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| Location of weather station : 48.4 N, 89.3 W, altitude : 199 m |
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Data
Period |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Mean Maximum
Temperature (deg. C) |
1941-1992 |
-8.9 |
-6.2 |
0.2 |
8.7 |
15.7 |
20.5 |
24.4 |
22.9 |
17.3 |
10.8 |
2.0 |
-6.0 |
Mean Temperature
(deg. C) |
1941-1992 |
-15.0 |
-12.8 |
-5.6 |
2.7 |
9.0 |
13.9 |
17.7 |
16.4 |
11.2 |
5.4 |
-2.6 |
-11.3 |
Mean Minimum
Temperature (deg. C) |
1941-1992 |
-21.3 |
-19.5 |
-11.6 |
-3.3 |
2.2 |
7.2 |
11.0 |
10.0 |
5.1 |
-0.1 |
-7.4 |
-16.7 |
| Rainfall Amount (mm) |
1941-1990 |
32.4 |
25.6 |
40.9 |
47.1 |
69.3 |
84.0 |
79.9 |
88.5 |
86.4 |
60.9 |
49.4 |
39.3 |
| Days with Rain* |
1941-1990 |
12 |
10 |
11 |
10 |
11 |
13 |
12 |
13 |
13 |
11 |
11 |
13 |
Mean Daily Sunshine
Duration (hours) |
1968-1992 |
3.7 |
4.8 |
5.3 |
7.5 |
8.4 |
8.7 |
9.6 |
8.4 |
5.4 |
4.0 |
3.0 |
3.0 |
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| * denotes number of days with at least 0.2 mm of rainfall |
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