Weather in Attu for a month

M
T
W
T
F
S
S
−2
min: −4
+2
−7
−2
−4
−2
−3
0
−4
−1
−3
−1
−2
+2
−2
+3
−3
+3
+1
31
+3
−1
1 jun
+1
−2
2
+1
−2
3
0
−2
4
+2
−1
5
+4
+1
6
+2
+1
7
+2
0
8
+5
0
9
+4
+1
10
+5
+2
11
+7
+1
12
+11
+6
13
+9
+4
14
+5
+2
15
+6
+3
16
+5
+2
17
+7
+3
18
+5
+2
19
+4
+2
20
21
22
23
24

Geomagnetic field

M, 21 may
2 points
Small perturbations
T, 22 may
2 points
Small perturbations
W, 23 may
6 points
Strong geomagnetic storm