| Record high, °C |
39 |
34 |
29 |
24 |
22 |
24 |
30 |
36 |
37 |
38 |
41 |
40 |
41 |
| Average high, °C |
24 |
18 |
11 |
5 |
3 |
3 |
8 |
15 |
21 |
26 |
29 |
27 |
16 |
| Average temperature, °C |
19 |
13 |
7 |
1 |
0 |
0 |
4 |
10 |
16 |
21 |
24 |
23 |
12 |
| Average low, °C |
15 |
9 |
4 |
-1 |
-3 |
-3 |
0 |
6 |
11 |
16 |
20 |
19 |
8 |
| Record low, °C |
4 |
-2 |
-15 |
-25 |
-21 |
-26 |
-16 |
-11 |
0 |
7 |
11 |
10 |
-26 |
| Rain, days |
8 |
8 |
9 |
10 |
11 |
10 |
11 |
11 |
11 |
10 |
11 |
10 |
120 |
| Snow, days |
0 |
0 |
0 |
2 |
4 |
3 |
2 |
0 |
0 |
0 |
0 |
0 |
11 |
| Fog, days |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
| Thunderstorms, days |
1 |
1 |
0 |
0 |
0 |
0 |
1 |
1 |
3 |
4 |
5 |
4 |
20 |
| Snowfall, cm. |
0 |
0 |
1 |
12 |
18 |
23 |
10 |
2 |
0 |
0 |
0 |
0 |
66 |
| Average precipitation, mm. |
93 |
89 |
89 |
91 |
87 |
84 |
97 |
92 |
98 |
90 |
106 |
111 |
1127 |
| Relative humidity, % |
66 |
64 |
62 |
60 |
60 |
56 |
58 |
58 |
62 |
65 |
63 |
65 |
62 |
| Relative humidity morning, % |
78 |
75 |
72 |
69 |
67 |
67 |
66 |
64 |
72 |
74 |
74 |
76 |
71 |
| Relative humidity evening, % |
56 |
55 |
58 |
59 |
55 |
53 |
50 |
45 |
52 |
55 |
53 |
54 |
54 |
| Wind speed, km/h |
17 |
18 |
20 |
21 |
21 |
21 |
21 |
20 |
18 |
17 |
16 |
16 |
19 |
| Day Length, часов |
13 |
12 |
10 |
10 |
10 |
11 |
13 |
14 |
15 |
16 |
15 |
14 |
13 |
| Dew point, °C |
14 |
8 |
2 |
-3 |
-6 |
-6 |
-3 |
3 |
9 |
15 |
17 |
17 |
67 |
| Growing degree-day, °C |
540 |
234 |
66 |
11 |
4 |
5 |
31 |
147 |
386 |
643 |
820 |
781 |
3668 |
| Solar radiation, global, Mj/m2 |
15 |
11 |
7 |
6 |
7 |
10 |
14 |
16 |
19 |
21 |
20 |
18 |
14 |