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Climate Lab — Sumy, Ukraine

Climate Lab·

Monthly climate metrics across temperature, precipitation, wind, and UV.

MetricJanFebMarAprMayJunJulAugSepOctNovDecYear
Temperature
Daily high°C
2
4
12
16
23
28
29
29
24
16
8
3
16
Daily mean°C
-2
1
4
10
16
22
22
23
19
10
3
-1
11
Daily low°C
-10
-5
-1
3
9
15
17
17
11
5
-2
-6
4
Thermal comfort
High feels°C
-4
-1
11
15
25
30
32
32
26
13
4
-3
15
Mean feels°C
-13
-11
-5
6
14
24
25
24
16
3
-6
-13
5
Low feels°C
-27
-21
-16
-5
4
15
15
15
4
-6
-16
-24
-5
Humidity
Humidity%
88
81
67
65
50
61
60
60
57
73
87
90
70
Dewpoint°C
-5.0
-2.8
-2.2
4.3
5.5
14.8
15.0
14.9
7.1
5.0
0.1
-2.3
4.5
Precipitation
Rainfallmm
23
16
24
73
58
70
82
67
24
71
51
28
586
Rain days≥1mm
4
5
6
13
10
12
8
8
7
11
8
4
96
Snowfallmm
39
36
8
1
0
0
0
0
0
0
10
36
131
Snow days≥1mm
8
9
2
0
0
0
0
0
0
0
4
8
31
Wind
Wind avgm/s
4.2
4.3
4.1
4.0
3.6
3.4
2.7
3.1
3.4
4.1
4.1
4.6
3.8
Wind gustsm/s
7.5
7.3
7.6
6.8
6.8
6.4
5.8
6.0
7.0
7.0
8.7
7.4
7.0
Sun & UV
Sunshinehrs/day
0.0
3.3
7.8
8.2
11.0
11.1
11.8
10.7
9.9
5.6
0.0
0.0
6.6
Clear skyindex
7%
19%
36%
36%
44%
50%
57%
57%
63%
30%
12%
6%
35%
UV indexmax avg
0.6
1.0
1.8
2.8
4.6
5.2
5.9
4.8
3.6
1.5
0.5
0.4
2.7
Based on 2014–2024 hourly climate data · Updated Mar 2025
Confidence: High

How winter feel compares

Compared across Ukraine

Sumy: -19.3 °C. Typical range in Ukraine: -16.3–-13.8 °C. Low anchor: Chernihiv, -18.1 °C. High anchor: Sevastopol, -6.4 °C.

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