| Record high, °C |
31 |
26 |
18 |
18 |
15 |
19 |
25 |
27 |
31 |
33 |
36 |
34 |
36 |
| Average high, °C |
21 |
15 |
7 |
3 |
1 |
3 |
10 |
14 |
20 |
22 |
25 |
25 |
14 |
| Average temperature, °C |
16 |
10 |
4 |
1 |
0 |
1 |
6 |
10 |
15 |
18 |
20 |
20 |
10 |
| Average low, °C |
11 |
6 |
1 |
-1 |
-3 |
-1 |
2 |
5 |
10 |
13 |
15 |
14 |
6 |
| Record low, °C |
2 |
-6 |
-14 |
-17 |
-22 |
-18 |
-15 |
-3 |
1 |
3 |
6 |
6 |
-22 |
| Snow, days |
5 |
7 |
8 |
10 |
10 |
8 |
5 |
2 |
1 |
2 |
2 |
3 |
63 |
| Fog, days |
13 |
18 |
18 |
19 |
20 |
18 |
13 |
7 |
7 |
6 |
6 |
10 |
155 |
| Thunderstorms, days |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
3 |
4 |
4 |
4 |
17 |
| Snowfall, cm. |
0 |
0 |
5 |
11 |
11 |
10 |
5 |
0 |
0 |
0 |
0 |
0 |
42 |
| Average precipitation, mm. |
30 |
30 |
40 |
40 |
30 |
30 |
20 |
30 |
60 |
50 |
30 |
60 |
450 |
| Relative humidity, % |
75 |
80 |
85 |
90 |
85 |
80 |
70 |
65 |
65 |
70 |
65 |
65 |
75 |
| Relative humidity morning, % |
88 |
88 |
89 |
87 |
87 |
86 |
84 |
80 |
79 |
80 |
78 |
84 |
84 |
| Relative humidity evening, % |
57 |
63 |
76 |
80 |
77 |
70 |
58 |
52 |
53 |
54 |
50 |
52 |
62 |
| Wind speed, km/h |
8 |
8 |
8 |
8 |
9 |
8 |
9 |
14 |
12 |
9 |
9 |
9 |
9 |
| Monthly sunshine, часов |
184 |
141 |
71 |
54 |
64 |
101 |
139 |
186 |
236 |
234 |
252 |
245 |
1905 |
| Day Length, часов |
13 |
11 |
10 |
9 |
10 |
11 |
13 |
14 |
16 |
17 |
16 |
15 |
13 |
| Dew point, °C |
11 |
6 |
1 |
-1 |
-3 |
-2 |
1 |
3 |
8 |
12 |
13 |
13 |
62 |
| Growing degree-day, °C |
192 |
17 |
0 |
0 |
0 |
0 |
0 |
0 |
155 |
242 |
310 |
301 |
1217 |
| Solar radiation, global, Mj/m2 |
12 |
7 |
4 |
3 |
4 |
7 |
11 |
14 |
18 |
19 |
19 |
17 |
11 |