Weather in Alkmaar for a month

M
T
W
T
F
S
S
21 may
+23
+13
22
+21
+14
23
+19
+15
+22
min: +15
+23
+16
+26
+16
+23
+17
+24
+16
+22
+18
+17
+15
+17
+14
+18
+14
+13
+12
3
+14
+11
4
+14
+12
5
+14
+13
6
+13
+11
7
+12
+11
8
+15
+12
9
+16
+14
10
+16
+14
11
+14
+12
12
+14
+12
13
+13
+12
14
+13
+12
15
+15
+12
16
+19
+14
17
+17
+15
18
+15
+13
19
+19
+14
20
+15
+14
21
+16
+14
22
+15
+14
23
24

Geomagnetic field

T, 24 may
3 points
Weak geomagnetic storm
F, 25 may
3 points
Weak geomagnetic storm
S, 26 may
2 points
Small perturbations