| Record high, °C |
32 |
26 |
17 |
16 |
13 |
19 |
22 |
26 |
27 |
32 |
33 |
33 |
33 |
| Average high, °C |
18 |
12 |
5 |
2 |
1 |
2 |
7 |
11 |
17 |
20 |
22 |
22 |
12 |
| Average temperature, °C |
13 |
8 |
3 |
0 |
-1 |
0 |
3 |
7 |
12 |
15 |
17 |
17 |
8 |
| Average low, °C |
8 |
4 |
0 |
-2 |
-3 |
-3 |
0 |
2 |
7 |
10 |
12 |
11 |
4 |
| Record low, °C |
-2 |
-7 |
-15 |
-21 |
-25 |
-25 |
-23 |
-7 |
-2 |
0 |
5 |
2 |
-25 |
| Rain, days |
11 |
12 |
12 |
9 |
8 |
7 |
11 |
13 |
14 |
15 |
14 |
12 |
138 |
| Snow, days |
0 |
0 |
6 |
10 |
12 |
10 |
7 |
4 |
0 |
0 |
0 |
0 |
49 |
| Fog, days |
20 |
22 |
20 |
19 |
20 |
21 |
19 |
19 |
18 |
16 |
16 |
20 |
230 |
| Thunderstorms, days |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
5 |
5 |
6 |
22 |
| Snowfall, cm. |
0 |
2 |
16 |
42 |
39 |
35 |
31 |
9 |
0 |
0 |
0 |
0 |
174 |
| Average precipitation, mm. |
179 |
138 |
140 |
135 |
66 |
82 |
140 |
148 |
218 |
311 |
268 |
237 |
2062 |
| Relative humidity, % |
84 |
81 |
83 |
83 |
86 |
83 |
79 |
79 |
80 |
81 |
79 |
77 |
81 |
| Relative humidity morning, % |
92 |
93 |
90 |
89 |
89 |
90 |
90 |
89 |
87 |
86 |
88 |
91 |
90 |
| Relative humidity evening, % |
60 |
69 |
79 |
81 |
80 |
74 |
63 |
57 |
56 |
58 |
57 |
58 |
66 |
| Wind speed, km/h |
9 |
12 |
12 |
12 |
14 |
12 |
12 |
9 |
8 |
8 |
8 |
8 |
10 |
| Monthly sunshine, часов |
141 |
101 |
30 |
10 |
37 |
68 |
102 |
149 |
190 |
175 |
207 |
210 |
1419 |
| Day Length, часов |
13 |
11 |
10 |
9 |
9 |
11 |
13 |
14 |
16 |
17 |
16 |
15 |
13 |
| Dew point, °C |
9 |
5 |
0 |
-2 |
-3 |
-3 |
0 |
2 |
7 |
10 |
12 |
12 |
49 |
| Growing degree-day, °C |
117 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
69 |
158 |
224 |
215 |
783 |
| Solar radiation, global, Mj/m2 |
11 |
7 |
4 |
3 |
4 |
7 |
10 |
14 |
18 |
18 |
18 |
16 |
11 |