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Monthly overview (May 2018)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��36.5��, H: 30011nT, Z: 35840nT and F: 46746nT for May 2018.

Monthly average of the K-index daily sum is 11.9. indicates a slightly low level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 2 si, 3 bay, 0 sfe, 3 pi and 0 pc.

The international 5 quietest days are the 1,19,20,21,26^th.

The international 5 most disturbed days are the 5,6,7,9,11^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	06	calm		��		plot
2	05	calm				plot
3	06	calm	pi			plot
4	07	calm				plot
5	21	moderately disturbed	storm		��	plot
6	26	disturbed	bay		��	plot
7	22	moderately disturbed			��	plot
8	22	moderately disturbed	bay			plot
9	20	moderately disturbed			��	plot
10	19	moderately disturbed				plot
11	22	moderately disturbed				plot
12	13	moderately calm				plot
13	17	moderately disturbed				plot
14	10	calm				plot
15	07	calm				plot
16	08	calm				plot
17	20	moderately disturbed	si			plot
18	08	calm	pi			plot
19	03	extremely calm		��		plot
20	03	extremely calm		��		plot
21	02	extremely calm		��		plot
22	12	moderately calm	si			plot
23	17	moderately disturbed				plot
24	07	calm				plot
25	05	calm				plot
26	07	calm				plot
27	11	moderately calm				plot
28	06	calm				plot
29	08	calm				plot
30	09	calm				plot
31	21	moderately disturbed	pi			plot

*) Plot diagram opens in a separate window.