Weather in Imatra for a month

M
T
W
T
F
S
S
21 may
+19
+12
22
+21
+13
+22
min: +14
+18
+11
+21
+10
+24
+12
+18
+12
+20
+9
+25
+13
+18
+12
+10
+9
+13
+7
2
+16
+9
3
+16
+9
4
+22
+9
5
+22
+12
6
+19
+14
7
+24
+16
8
+25
+15
9
+20
+15
10
+20
+11
11
+24
+11
12
+21
+16
13
+15
+14
14
+21
+12
15
+18
+13
16
+17
+10
17
+20
+12
18
+27
+13
19
+21
+13
20
+20
+11
21
+16
+14
22
23
24

Geomagnetic field

W, 23 may
2 points
Small perturbations
T, 24 may
3 points
Weak geomagnetic storm
F, 25 may
3 points
Weak geomagnetic storm