| Record high, °C |
34 |
31 |
28 |
21 |
17 |
21 |
26 |
28 |
31 |
36 |
40 |
37 |
40 |
| Average high, °C |
23 |
17 |
8 |
5 |
3 |
5 |
11 |
16 |
21 |
23 |
27 |
27 |
16 |
| Average temperature, °C |
18 |
13 |
6 |
2 |
1 |
2 |
7 |
12 |
17 |
20 |
22 |
22 |
12 |
| Average low, °C |
13 |
8 |
3 |
0 |
0 |
0 |
3 |
8 |
13 |
15 |
17 |
18 |
8 |
| Record low, °C |
6 |
-2 |
-7 |
-11 |
0 |
-17 |
-12 |
0 |
5 |
3 |
10 |
10 |
-17 |
| Rain, days |
10 |
12 |
13 |
12 |
9 |
9 |
12 |
16 |
16 |
16 |
11 |
10 |
146 |
| Snow, days |
0 |
0 |
3 |
8 |
10 |
7 |
4 |
1 |
0 |
0 |
0 |
0 |
33 |
| Fog, days |
10 |
17 |
19 |
20 |
20 |
16 |
12 |
7 |
6 |
8 |
8 |
10 |
153 |
| Thunderstorms, days |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
3 |
5 |
3 |
4 |
18 |
| Average precipitation, mm. |
40 |
50 |
50 |
50 |
40 |
30 |
40 |
50 |
70 |
80 |
60 |
50 |
610 |
| Relative humidity, % |
67 |
71 |
75 |
79 |
78 |
71 |
63 |
61 |
61 |
63 |
61 |
61 |
68 |
| Relative humidity morning, % |
79 |
82 |
85 |
84 |
83 |
81 |
76 |
70 |
71 |
74 |
72 |
72 |
77 |
| Relative humidity evening, % |
48 |
56 |
70 |
74 |
72 |
61 |
50 |
48 |
46 |
49 |
43 |
41 |
55 |
| Wind speed, km/h |
9 |
12 |
12 |
12 |
9 |
14 |
14 |
12 |
12 |
8 |
8 |
8 |
11 |
| Monthly sunshine, часов |
204 |
163 |
97 |
65 |
72 |
102 |
153 |
188 |
242 |
261 |
291 |
274 |
2112 |
| Day Length, часов |
13 |
11 |
10 |
9 |
10 |
11 |
13 |
14 |
15 |
16 |
16 |
15 |
13 |
| Dew point, °C |
10 |
6 |
2 |
-1 |
-2 |
-2 |
0 |
4 |
8 |
12 |
13 |
13 |
63 |
| Growing degree-day, °C |
258 |
103 |
0 |
0 |
0 |
0 |
0 |
83 |
233 |
292 |
388 |
405 |
1761 |
| Solar radiation, global, Mj/m2 |
14 |
9 |
5 |
4 |
5 |
8 |
12 |
16 |
20 |
21 |
21 |
19 |
13 |