| Record high, °C |
34 |
28 |
21 |
16 |
16 |
20 |
25 |
28 |
31 |
35 |
38 |
38 |
38 |
| Average high, °C |
20 |
14 |
7 |
3 |
2 |
4 |
10 |
15 |
20 |
23 |
26 |
26 |
14 |
| Average temperature, °C |
14 |
9 |
3 |
0 |
-1 |
0 |
4 |
9 |
14 |
17 |
19 |
19 |
9 |
| Average low, °C |
10 |
5 |
1 |
-2 |
-4 |
-3 |
1 |
4 |
9 |
12 |
14 |
14 |
5 |
| Record low, °C |
1 |
-8 |
-13 |
-20 |
-23 |
-20 |
-18 |
-5 |
-1 |
1 |
5 |
2 |
-23 |
| Snow, days |
2 |
5 |
7 |
5 |
7 |
6 |
3 |
1 |
0 |
0 |
0 |
0 |
36 |
| Fog, days |
2 |
5 |
7 |
5 |
7 |
6 |
3 |
1 |
0 |
0 |
0 |
0 |
36 |
| Thunderstorms, days |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
5 |
6 |
6 |
5 |
26 |
| Snowfall, cm. |
0 |
0 |
5 |
6 |
9 |
11 |
3 |
1 |
0 |
0 |
0 |
0 |
35 |
| Average precipitation, mm. |
39 |
27 |
32 |
23 |
19 |
20 |
24 |
34 |
54 |
60 |
63 |
49 |
442 |
| Relative humidity, % |
70 |
80 |
85 |
85 |
85 |
75 |
70 |
65 |
65 |
65 |
65 |
65 |
73 |
| Relative humidity morning, % |
86 |
88 |
87 |
85 |
85 |
83 |
82 |
77 |
77 |
75 |
75 |
78 |
81 |
| Relative humidity evening, % |
53 |
60 |
72 |
76 |
73 |
65 |
54 |
49 |
50 |
50 |
47 |
45 |
58 |
| Wind speed, km/h |
8 |
8 |
8 |
9 |
8 |
9 |
10 |
10 |
9 |
9 |
9 |
8 |
9 |
| Monthly sunshine, часов |
159 |
120 |
58 |
44 |
55 |
87 |
129 |
169 |
221 |
217 |
228 |
222 |
1707 |
| Day Length, часов |
13 |
11 |
10 |
9 |
9 |
11 |
13 |
14 |
16 |
17 |
16 |
15 |
13 |
| Dew point, °C |
9 |
5 |
0 |
-1 |
-3 |
-3 |
0 |
1 |
7 |
10 |
11 |
11 |
47 |
| Growing degree-day, °C |
156 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
145 |
228 |
299 |
301 |
1128 |
| Solar radiation, global, Mj/m2 |
11 |
7 |
4 |
3 |
4 |
7 |
10 |
15 |
18 |
18 |
18 |
16 |
11 |