| Record high, °C |
47 |
45 |
37 |
30 |
26 |
30 |
33 |
40 |
47 |
47 |
50 |
48 |
50 |
| Average high, °C |
40 |
34 |
26 |
19 |
16 |
20 |
25 |
31 |
36 |
40 |
42 |
41 |
31 |
| Average temperature, °C |
33 |
27 |
20 |
14 |
13 |
15 |
19 |
25 |
31 |
34 |
36 |
35 |
25 |
| Average low, °C |
25 |
20 |
13 |
10 |
7 |
10 |
13 |
19 |
24 |
27 |
28 |
27 |
19 |
| Record low, °C |
17 |
7 |
1 |
0 |
-1 |
-2 |
1 |
6 |
12 |
20 |
20 |
20 |
-2 |
| Fog, days |
1 |
6 |
5 |
13 |
11 |
6 |
2 |
1 |
1 |
0 |
0 |
1 |
47 |
| Thunderstorms, days |
0 |
1 |
1 |
2 |
1 |
1 |
2 |
2 |
2 |
0 |
0 |
0 |
12 |
| Average precipitation, mm. |
0 |
3 |
17 |
25 |
31 |
20 |
17 |
15 |
5 |
0 |
0 |
0 |
133 |
| Relative humidity, % |
37 |
46 |
59 |
69 |
70 |
63 |
54 |
48 |
39 |
34 |
32 |
34 |
49 |
| Relative humidity morning, % |
54 |
65 |
74 |
87 |
86 |
85 |
77 |
64 |
57 |
51 |
44 |
50 |
66 |
| Relative humidity evening, % |
24 |
29 |
38 |
54 |
55 |
48 |
38 |
32 |
26 |
25 |
23 |
24 |
35 |
| Wind speed, km/h |
12 |
10 |
10 |
10 |
11 |
12 |
13 |
13 |
14 |
17 |
16 |
14 |
13 |
| Day Length, часов |
13 |
12 |
11 |
11 |
11 |
12 |
12 |
12 |
14 |
15 |
14 |
14 |
12 |
| Dew point, °C |
16 |
15 |
12 |
8 |
7 |
8 |
10 |
13 |
15 |
16 |
17 |
17 |
152 |
| Growing degree-day, °C |
675 |
536 |
294 |
127 |
78 |
138 |
291 |
435 |
645 |
723 |
800 |
775 |
5517 |
| Solar radiation, global, Mj/m2 |
21 |
15 |
11 |
10 |
12 |
16 |
17 |
20 |
24 |
27 |
26 |
24 |
19 |