Average temperature over 30 years |
°C |
12 |
-1 |
0 |
6 |
12 |
17 |
22 |
24 |
23 |
20 |
13 |
7 |
1 |
Average high temperature over 30 years |
°C |
18 |
3 |
6 |
12 |
18 |
24 |
28 |
30 |
29 |
26 |
19 |
12 |
6 |
Average low temperature over 30 years |
°C |
6 |
-6 |
-4 |
1 |
6 |
11 |
16 |
18 |
17 |
14 |
7 |
2 |
-2 |
Highest recorded temperature over 48 years |
°C |
39 |
23 |
24 |
29 |
32 |
34 |
38 |
38 |
39 |
37 |
32 |
27 |
23 |
Lowest recorded temperature over 48 years |
°C |
-30 |
-30 |
-22 |
-21 |
-7 |
-2 |
3 |
8 |
6 |
0 |
-7 |
-19 |
-25 |
Average number of rainy days over 46 years |
days |
130 |
12 |
11 |
13 |
13 |
12 |
10 |
10 |
9 |
8 |
8 |
11 |
12 |
Average number of days above 27°C over 30 years |
days |
25 |
- |
- |
- |
- |
1 |
4.9 |
9 |
7.1 |
2.4 |
0.1 |
- |
- |
Average precipitation over 30 years |
cm |
103.4 |
6.3 |
6.3 |
10.7 |
9.4 |
11.2 |
8.6 |
10.4 |
9.4 |
7.9 |
7.1 |
8.4 |
7.9 |
Average morning relative humidity over 31 years |
% |
82 |
79 |
78 |
78 |
76 |
80 |
82 |
85 |
88 |
88 |
84 |
80 |
80 |
Average evening relative humidity over 31 years |
% |
60 |
68 |
64 |
59 |
54 |
55 |
56 |
57 |
58 |
58 |
55 |
63 |
69 |
Average wind speed over 46 years |
km/h |
14.6 |
17.2 |
16.7 |
17.9 |
17.2 |
14.0 |
12.9 |
11.6 |
10.9 |
11.9 |
13.2 |
15.6 |
16.4 |
Average number of days below -1.5°C over 30 years |
days |
90 |
22 |
19 |
13 |
3.5 |
0.2 |
- |
- |
- |
- |
2.5 |
11 |
19 |
Average number of days below -17.5°C over 30 years |
days |
2.1 |
1.2 |
0.4 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.4 |
Average snowfall over 30 years |
cm |
36.1 |
12.4 |
9.9 |
6.6 |
0.5 |
- |
- |
- |
- |
- |
- |
1.8 |
4.8 |
Average number of clear days over 42 years |
days |
82 |
5 |
5 |
5 |
6 |
6 |
7 |
8 |
8 |
10 |
11 |
6 |
5 |
Most rain reported in a day over 49 years |
cm |
11.9 |
7.4 |
5.8 |
11.9 |
6.1 |
7.9 |
9.7 |
6.9 |
9.9 |
8.1 |
11.4 |
6.1 |
6.1 |
Most rain reported in a month over 49 years |
cm |
151.4 |
25.1 |
16.5 |
28.2 |
21.1 |
26.7 |
19.1 |
27.2 |
18.5 |
21.6 |
21.6 |
17.8 |
20.3 |
Least rain reported in a month over 49 years |
cm |
72.9 |
1.3 |
0.8 |
3.3 |
1.8 |
1.5 |
2.0 |
2.3 |
1.8 |
1.0 |
0.3 |
1.3 |
1.0 |
Heating degree days over 30 years |
days |
4933 |
1082 |
874 |
641 |
335 |
116 |
12 |
1 |
3 |
56 |
294 |
588 |
931 |
Cooling degree days over 30 years |
days |
1164 |
- |
- |
3 |
16 |
85 |
234 |
354 |
304 |
148 |
19 |
1 |
- |
Average possibility of sunshine over 10 years |
% |
51 |
37 |
43 |
47 |
56 |
56 |
62 |
62 |
62 |
62 |
53 |
37 |
32 |
Average number of cloudy days over 42 years |
days |
186 |
20 |
17 |
19 |
17 |
15 |
13 |
11 |
11 |
11 |
13 |
18 |
20 |
Average number of partly cloudy days over 42 years |
days |
98 |
6 |
6 |
7 |
7 |
10 |
10 |
12 |
12 |
9 |
7 |
6 |
6 |
Most snow reported in a month over 49 years |
cm |
70.4 |
50.5 |
32.5 |
30.5 |
5.6 |
- |
- |
- |
- |
- |
6.3 |
17.5 |
21.1 |