Average temperature over 54 years |
°C |
11 |
8 |
9 |
9 |
10 |
11 |
13 |
13 |
14 |
13 |
12 |
11 |
9 |
Average high temperature over 54 years |
°C |
14 |
12 |
12 |
12 |
13 |
14 |
15 |
16 |
16 |
17 |
16 |
14 |
12 |
Average low temperature over 54 years |
°C |
8 |
5 |
6 |
6 |
7 |
8 |
10 |
11 |
11 |
10 |
9 |
7 |
5 |
Highest recorded temperature over 54 years |
°C |
30 |
25 |
26 |
24 |
26 |
27 |
29 |
24 |
27 |
30 |
30 |
25 |
25 |
Lowest recorded temperature over 54 years |
°C |
-6 |
-3 |
-2 |
-1 |
1 |
2 |
5 |
7 |
7 |
5 |
0 |
-1 |
-6 |
Average number of rainy days over 83 years |
days |
117 |
16 |
14 |
16 |
12 |
8 |
5 |
2 |
3 |
4 |
9 |
13 |
15 |
Average precipitation over 54 years |
cm |
96.5 |
16.3 |
12.7 |
13.2 |
7.4 |
4.6 |
1.5 |
0.5 |
0.8 |
2.0 |
7.1 |
14.2 |
16.3 |
Average relative humidity over 12 years |
% |
85 |
81 |
83 |
81 |
84 |
84 |
87 |
89 |
89 |
87 |
86 |
84 |
84 |
Average dew point over 12 years |
°C |
7 |
5 |
5 |
5 |
6 |
8 |
10 |
11 |
11 |
10 |
9 |
7 |
6 |
Most recorded rainfall over 54 years |
cm |
170.7 |
35.3 |
27.4 |
28.4 |
27.2 |
15.2 |
6.6 |
3.0 |
8.6 |
8.4 |
33.0 |
42.2 |
35.8 |
Least recorded rainfall over 54 years |
cm |
53.6 |
1.8 |
0.3 |
3.0 |
0.8 |
- |
- |
- |
- |
- |
- |
0.8 |
1.3 |
Average number of days with thunderstorms over 33 years |
days |
4 |
1 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
1 |
Average number of days with fog over 33 years |
days |
191 |
13 |
11 |
10 |
12 |
13 |
16 |
22 |
22 |
21 |
21 |
15 |
15 |
Average wind speed over 54 years |
km/h |
10.9 |
11.1 |
11.6 |
12.2 |
12.9 |
12.7 |
11.9 |
10.9 |
9.3 |
8.9 |
9.0 |
9.7 |
10.3 |
Average number of days below -1.5°C over 12 years |
days |
4.8 |
2.3 |
0.8 |
0.6 |
- |
- |
- |
- |
- |
- |
- |
0.2 |
0.9 |
Average snowfall over 12 years |
cm |
1.0 |
0.8 |
0.3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of clear days over 83 years |
days |
78 |
6 |
5 |
5 |
6 |
6 |
7 |
7 |
5 |
9 |
8 |
6 |
7 |
Heating degree days over 30 years |
days |
4496 |
527 |
440 |
484 |
444 |
378 |
285 |
248 |
223 |
234 |
319 |
399 |
515 |
Average possibility of sunshine over 83 years |
% |
51 |
43 |
46 |
52 |
57 |
58 |
59 |
55 |
50 |
54 |
50 |
44 |
41 |
Average number of cloudy days over 83 years |
days |
188 |
19 |
17 |
18 |
16 |
15 |
13 |
13 |
15 |
13 |
15 |
17 |
18 |
Average number of partly cloudy days over 83 years |
days |
99 |
6 |
6 |
8 |
8 |
10 |
10 |
11 |
11 |
8 |
8 |
7 |
6 |
Average number of days below 4.5°C over 54 years |
days |
134 |
24 |
19 |
21 |
16 |
7 |
1 |
- |
- |
1 |
7 |
16 |
22 |
Average number of days above 19.5°C over 54 years |
days |
2 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
1 |
- |
- |