Average temperature over 30 years |
°C |
12 |
0 |
0 |
5 |
11 |
17 |
22 |
24 |
24 |
20 |
14 |
8 |
2 |
Average high temperature over 30 years |
°C |
16 |
3 |
4 |
10 |
16 |
22 |
26 |
29 |
28 |
24 |
18 |
12 |
5 |
Average low temperature over 30 years |
°C |
8 |
-3 |
-2 |
1 |
6 |
12 |
17 |
20 |
19 |
15 |
9 |
5 |
0 |
Highest recorded temperature over 121 years |
°C |
41 |
22 |
23 |
30 |
35 |
37 |
38 |
41 |
40 |
38 |
34 |
28 |
22 |
Lowest recorded temperature over 121 years |
°C |
- |
- |
- |
-15 |
-11 |
-2 |
6 |
11 |
10 |
3 |
-2 |
-11 |
-17 |
Average number of rainy days over 124 years |
days |
121 |
11 |
10 |
11 |
11 |
11 |
10 |
11 |
10 |
8 |
8 |
9 |
10 |
Average number of days above 27°C over 30 years |
days |
16 |
- |
- |
- |
0.1 |
0.8 |
3 |
6.4 |
4 |
1.2 |
- |
- |
- |
Average precipitation over 30 years |
cm |
118.6 |
8.6 |
8.4 |
9.9 |
10.2 |
11.2 |
9.4 |
11.2 |
10.4 |
9.9 |
9.1 |
11.4 |
9.9 |
Average dew point over 18 years |
°C |
4 |
-7 |
-7 |
-3 |
1 |
8 |
13 |
16 |
16 |
13 |
6 |
1 |
-3 |
Most recorded rainfall over 32 years |
cm |
170.2 |
26.7 |
15.2 |
26.4 |
21.1 |
25.9 |
23.6 |
30.0 |
31.5 |
23.6 |
19.8 |
31.5 |
25.4 |
Least recorded rainfall over 32 years |
cm |
66.3 |
1.5 |
1.3 |
2.3 |
3.3 |
1.5 |
3.0 |
3.3 |
0.5 |
3.3 |
0.3 |
0.8 |
1.5 |
Average number of days with thunderstorms over 28 years |
days |
20 |
- |
- |
1 |
1 |
3 |
4 |
5 |
4 |
1 |
1 |
- |
- |
Average number of days with fog over 28 years |
days |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
- |
Average morning relative humidity over 18 years |
% |
71 |
67 |
67 |
66 |
64 |
72 |
74 |
74 |
76 |
78 |
75 |
72 |
69 |
Average evening relative humidity over 18 years |
% |
54 |
55 |
53 |
50 |
45 |
52 |
55 |
53 |
54 |
56 |
55 |
58 |
59 |
Average wind speed over 18 years |
km/h |
16.1 |
17.7 |
17.7 |
19.3 |
17.7 |
16.1 |
12.9 |
12.9 |
12.9 |
12.9 |
14.5 |
14.5 |
17.7 |
Average number of days below -1.5°C over 30 years |
days |
82 |
23 |
21 |
14 |
1.9 |
- |
- |
- |
- |
- |
0.2 |
5.1 |
18 |
Average number of days below -17.5°C over 30 years |
days |
0.1 |
0.1 |
0.1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average snowfall over 30 years |
cm |
62.0 |
21.1 |
21.8 |
8.4 |
1.0 |
- |
- |
- |
- |
- |
- |
1.0 |
8.4 |
Average number of days above 14.5°C over 33 years |
days |
178 |
- |
- |
3 |
11 |
24 |
29 |
31 |
31 |
28 |
16 |
4 |
- |
Average number of clear days over 42 years |
days |
107 |
8 |
8 |
9 |
8 |
8 |
8 |
8 |
9 |
11 |
12 |
9 |
9 |
Most rain reported in a day over 121 years |
cm |
21.1 |
8.9 |
7.9 |
10.9 |
8.6 |
10.2 |
10.9 |
9.1 |
12.2 |
21.1 |
18.5 |
18.8 |
7.6 |
Most rain reported in a month over 121 years |
cm |
170.2 |
26.7 |
17.3 |
26.4 |
21.1 |
25.9 |
24.9 |
30.2 |
31.5 |
42.9 |
33.8 |
31.5 |
25.4 |
Least rain reported in a month over 121 years |
cm |
66.3 |
1.5 |
1.3 |
2.3 |
2.5 |
0.8 |
- |
1.3 |
0.5 |
0.5 |
0.3 |
0.8 |
0.8 |
Heating degree days over 30 years |
days |
4858 |
1032 |
882 |
702 |
385 |
133 |
15 |
1 |
2 |
47 |
254 |
526 |
879 |
Cooling degree days over 30 years |
days |
1141 |
- |
- |
1 |
9 |
62 |
212 |
366 |
328 |
141 |
20 |
2 |
- |
Average possibility of sunshine over 107 years |
% |
58 |
51 |
55 |
57 |
58 |
61 |
64 |
65 |
64 |
62 |
61 |
52 |
49 |
Average number of cloudy days over 42 years |
days |
132 |
14 |
11 |
12 |
12 |
11 |
10 |
10 |
10 |
9 |
9 |
12 |
13 |
Average number of partly cloudy days over 42 years |
days |
127 |
9 |
9 |
10 |
10 |
12 |
12 |
13 |
12 |
10 |
10 |
9 |
9 |
Most snow reported in a month over 121 years |
cm |
168.9 |
86.4 |
70.9 |
64.8 |
25.9 |
- |
0.3 |
- |
- |
- |
2.0 |
32.5 |
75.2 |