Average temperature over 47 years |
°C |
17 |
7 |
9 |
12 |
17 |
21 |
25 |
27 |
26 |
23 |
17 |
12 |
8 |
Average high temperature over 47 years |
°C |
24 |
13 |
16 |
20 |
25 |
28 |
32 |
33 |
32 |
30 |
25 |
20 |
15 |
Average low temperature over 47 years |
°C |
10 |
0 |
2 |
5 |
9 |
14 |
18 |
21 |
20 |
17 |
10 |
5 |
1 |
Highest recorded temperature over 47 years |
°C |
42 |
26 |
30 |
31 |
35 |
37 |
40 |
41 |
42 |
38 |
36 |
32 |
27 |
Lowest recorded temperature over 47 years |
°C |
-18 |
-18 |
-12 |
-11 |
-3 |
1 |
8 |
12 |
12 |
2 |
-5 |
-11 |
-15 |
Average number of rainy days over 43 years |
days |
107 |
10 |
9 |
10 |
8 |
9 |
9 |
11 |
10 |
7 |
6 |
7 |
9 |
Average number of days above 27°C over 47 years |
days |
76 |
- |
- |
- |
1 |
7 |
16 |
23 |
20 |
9 |
1 |
- |
- |
Average precipitation over 47 years |
cm |
111.3 |
10.2 |
10.4 |
11.7 |
8.1 |
8.9 |
9.9 |
11.4 |
10.9 |
8.1 |
7.1 |
5.8 |
8.1 |
Average dew point over 47 years |
°C |
11 |
1 |
2 |
5 |
9 |
15 |
18 |
21 |
21 |
17 |
11 |
6 |
2 |
Average number of days above 17°C over 47 years |
days |
246 |
4 |
7 |
15 |
24 |
30 |
30 |
31 |
31 |
29 |
26 |
14 |
6 |
Most recorded rainfall over 47 years |
cm |
167.6 |
22.6 |
19.6 |
30.2 |
21.3 |
24.4 |
22.4 |
31.0 |
28.7 |
24.1 |
37.6 |
19.8 |
21.8 |
Least recorded rainfall over 47 years |
cm |
80.0 |
2.0 |
0.8 |
2.3 |
1.5 |
1.3 |
1.8 |
2.5 |
1.5 |
0.8 |
- |
0.3 |
0.8 |
Average number of days with thunderstorms over 47 years |
days |
56 |
1 |
2 |
3 |
4 |
6 |
10 |
13 |
10 |
4 |
1 |
1 |
1 |
Average number of days with fog over 47 years |
days |
194 |
15 |
12 |
13 |
13 |
16 |
17 |
18 |
22 |
20 |
17 |
16 |
15 |
Average morning relative humidity over 47 years |
% |
87 |
84 |
82 |
84 |
85 |
86 |
86 |
88 |
91 |
92 |
91 |
88 |
85 |
Average evening relative humidity over 47 years |
% |
50 |
51 |
47 |
45 |
43 |
47 |
51 |
56 |
56 |
55 |
49 |
47 |
51 |
Average wind speed over 47 years |
km/h |
12.9 |
16.1 |
17.7 |
17.7 |
12.9 |
9.7 |
9.7 |
9.7 |
8.0 |
12.9 |
12.9 |
14.5 |
14.5 |
Average number of days below -1.5°C over 47 years |
days |
54 |
15 |
11 |
5 |
1 |
- |
- |
- |
- |
- |
1 |
7 |
14 |
Average snowfall over 43 years |
cm |
3.0 |
0.8 |
2.0 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.3 |
Average number of clear days over 43 years |
days |
112 |
9 |
9 |
9 |
11 |
8 |
8 |
6 |
7 |
9 |
14 |
12 |
10 |
Heating degree days over 30 years |
days |
2565 |
654 |
493 |
305 |
106 |
12 |
- |
- |
- |
- |
129 |
314 |
552 |
Cooling degree days over 30 years |
days |
1948 |
- |
- |
11 |
37 |
188 |
375 |
490 |
456 |
285 |
92 |
14 |
- |
Average number of cloudy days over 43 years |
days |
148 |
16 |
13 |
14 |
11 |
12 |
11 |
12 |
10 |
11 |
10 |
12 |
15 |
Average number of partly cloudy days over 43 years |
days |
106 |
6 |
6 |
8 |
8 |
11 |
11 |
13 |
14 |
10 |
7 |
6 |
6 |